Jjk Oc X Canon - Blog Posts

Figured I might share with the internet my Jujutsu Kaisen OC, Aki

.

Please be gentle and give them many headpats, they need them 🙇

I'm in the JJK hole again to cope with the ending of the manga, so have a random scene with my JJK OC Aki, Fushiguro and Gojo

I uh think

mer mercjpei

fav girlie + mercupine

from chapter 3 (I think?) when he goes on the trip lmao. I have a Pinterest board filled with silly posts and text messages. Her hair is longer here bc I like to think right before her freshman year she cut in on impulse. probably not a very good day for her family 😭

idk guys, I just like drawing her

Fic/ Lore idea pt.3 2/2

Scene: Jujutsu High Dorm Room – Midnight

The mirror above the dresser was half-fogged from her earlier shower.

Yamika, no longer in her “Yume” persona, sat on the bed with damp, loosely braided hair. The piercings and neon colors were gone. Her bare face was pale in the moonlight, faint shadows under her eyes.

The contacts were gone too—leaving her natural, swirling irises exposed, colors shifting softly like mood rings beneath her lashes.

She sat quietly, legs crossed, eyes fixed on the floor.

“You’re breathing weird,” came Ayumu’s voice from inside. Gentle. A little amused.

Yamika huffed, barely smiling. “He smiled at me.”

“Yuji?”

She groaned and collapsed back against the mattress dramatically. “Ugh, yes. And he has a nice smile. Why does he have a nice smile? Why do I care about his smile?!”

Ayumu laughed inside their shared mind. “Maybe you like him.”

“I shouldn’t. He’s... he’s my dad’s little sleepover buddy!”

“You don’t get to choose feelings like this. Believe me.”

Yamika curled into the blanket, muttering, “It’s disgusting. I’m disgusting. He’s—he’s good. He’s golden retriever nice. He talks with his mouth full. He gets excited about sushi. He gives people his last piece without thinking about it.”

Ayumu’s voice softened. “So you noticed all that, huh?”

Yamika shut her eyes. “I hate you.”

“No you don’t.”

A long pause passed.

Then Yamika said quietly, “What about you? You think about him?”

Ayumu hesitated. Then: “Every day.”

Yamika smiled a little. “You love him, don’t you?”

“Yeah,” Ayumu whispered. “So much it hurts. Every time I see him smile at me, I want to freeze time. But we can’t tell anyone. Not ever. Not even Gojo knows how long he’ll be able to keep it secret.”

Yamika was quiet, letting that settle over them.

“You’re braver than me,” she added. “Letting yourself feel that.”

Yamika’s eyes flicked to the ceiling. “Does it still count as a crush if I want to punch myself in the face for it?”

Ayumu snorted. “Oh, absolutely.”

They both laughed quietly, the room soft with the sound of it.

After a moment, Yamika whispered, “I didn’t think I was capable of this. Of… caring. But now I don’t want to stop.”

“Then don’t,” Ayumu said gently. “We’re more than what we were made from. You especially.”

They sat together in silence—two voices, one body, one heart tangled in two directions.

And for the first time in a long while, Yamika didn’t feel alone.

Fic/Lore idea pt.3

*before we get into it I just wanna show you how I picture Yume and Ayumu these aren’t set appearances and I made these with future scenes in mind*

The one on the left is Ayumu and the one on the right is Yume(that design is closer to Yamika- just picture her with colorful hair, without the extra eye and her tattoos are hidden)

Scene: Jujutsu High Dorm Room – Late Night

The dorm was quiet. Most of the school was already asleep.

Yamika sat at the edge of their shared bed, makeup half wiped off, her multicolored hair let down from its stylized chaos. The moonlight from the window pooled on the floor, casting soft glows against her skin. Her swirling eyes were calm now—subdued into gentle colors that shifted lazily, like oil on water.

She stared at her reflection in the dark glass of the window. And then, softly—

“Ayumu.”

Ayumu’s voice stirred gently from within. “Still here.”

Yamika sighed. “I think I’m broken.”

“Why?”

“I like him.”

“Yuji?”

Yamika groaned and fell back onto the bed, flinging an arm over her eyes. “Don’t say it out loud.”

“You’re talking out loud.”

Yamika gritted her teeth. “He’s… sweet. And real. And warm. And… not completely disgusting like my father. But he is my father’s vessel. It’s gross. I’m gross.”

Ayumu giggled gently. “You’re not gross. You’re just… human. Sort of.”

“I’m not supposed to feel anything,” Yamika muttered. “I’m the one who keeps the walls up. You’re the soft one. I’m the cold-blooded backup plan.”

“You’re not just that.”

Silence stretched between them for a moment. Then Yamika asked:

“…Did it scare you? When you realized you loved him?”

Ayumu’s voice softened with a quiet fondness. “So much it made me sick.”

Yamika opened her eyes, blinking up at the ceiling. “And you kept it hidden all this time?”

“It’s not safe. Not for him. Not for me. But Gojo… he’s good at pretending. And he lets me feel normal, even if just for a little while.”

Yamika frowned. “He’s an idiot.”

“He’s my idiot.” Ayumu’s tone was warm. “And I’d rather love him in secret than not love him at all.”

“…I don’t want to love Yuji,” Yamika admitted, barely above a whisper. “But he makes me laugh. He talks to me like I’m real. He doesn’t know I’m a monster.”

“You’re not a monster,” Ayumu said gently. “You’re you.”

Yamika didn’t respond.

She rolled to her side, hugging a pillow to her chest.

“I don’t want to hurt him,” she whispered.

“Then don’t.”

“I don’t think I can stay in control around him.”

“Then we figure it out together.”

There was no reply for a moment. Just the quiet sound of Yamika’s breathing.

“…You really love him, huh?” she asked softly.

“Yeah.”

Yamika smiled faintly.

“I guess… we’re both doomed.”

“At least we’re doomed together.”

They both laughed—light, sad, and full of something that felt dangerously close to hope.

And in that moonlit stillness, they drifted off—not as Ayumu or Yamika or even Yume—but just two souls sharing the same quiet heart.

Fic/Lore idea pt.2

The courtyard buzzed with low conversation as Nobara sat perched on the edge of a low wall, spinning a nail between her fingers. Yuji was mid-stretch, cracking his knuckles, while Megumi stood with his arms crossed, clearly still skeptical of their new classmate.

Then—

“I’m ba~ack!”

Yume Miran came bounding around the corner, her vibrant hair catching the dying light—pink, green, and blue streaks shimmering like cotton candy fire. Her glowing, swirling eyesglinted in playful shades of violet and peach.

Yuji grinned. “Hey! You disappear to change outfits or something?”

She tossed her head with an easy laugh. “Nooo, I had to check in with Gojo-sensei. He says hi, and also that I’m probably way cooler than you.”

Yuji gasped. “Rude.”

Nobara smirked. “He’s not wrong though.”

Yume winked at her. “See? That’s why we’re best friends already.”

Nobara gave a proud nod and bumped her shoulder.

Megumi, still distant, narrowed his eyes. “Where did you really go?”

Yume turned to him, folding her hands behind her back. Her smile didn’t drop—but her tone got just a bit silkier. “Still suspicious, huh? Guess I’ll just have to win your trust with violence.”

Yuji raised a brow. “Uh… what?”

She clapped her hands suddenly. “Let’s spar!”

The others blinked.

“Spar?” Nobara asked. “Right now?”

“Why not?” Yume grinned. “Training makes the heart grow fonder. Or… well, makes the bruises grow bolder. Whatever. Come on! Let’s go until dinner—winner picks the first dish!”

Yuji brightened. “You’re on!”

Nobara cracked her knuckles. “Bring it.”

Megumi hesitated.

Yume tilted her head at him, her smile warm but unreadable. “You too, Megumi-kun. Unless you’re scared of getting shown up by the new girl?”

His eyes narrowed further, but he sighed and stepped forward. “Fine. But don’t complain if it gets rough.”

She beamed. “Promise. I like it rough.”

From Within…

Ayumu stirred faintly. Yamika, don’t hurt them. Oh, I won’t, Yamika purred. I just want to see what makes them bleed best. Yamika—! Relax. I’m still wearing the mask… for now.

Here's the next part of the scene, where Yume (Yamika) follows Gojo’s strict instruction not to use cursed energy—so instead, she studies and perfectly mimics the others' fighting styles during the sparring session. It adds a layer of unsettling brilliance, while still keeping her playful persona intact. And beneath it all, her feelings—toward Yuji, Nobara, and even Megumi—are genuine, not part of the mask.

Scene: Jujutsu High – Training Field, Moments Later

The four stood in a loose circle under the soft orange sky. The training field buzzed faintly with anticipation.

“Alright!” Yume spun on her heel. “No cursed techniques, no flashy finishers, just good old-fashioned hand-to-hand. Let’s keep it cute!”

“Cute?” Nobara laughed. “I don’t do cute in battle.”

“Then make it hot,” Yume teased with a wink. “I’m adaptable.”

Yuji stepped forward first. “Let me go first—test the new girl’s reflexes!”

Megumi muttered, “Or test her ability to survive your chaos.”

Yume dropped into a loose, bouncy stance, mirroring Yuji’s own footwork with eerie precision. Her posture shifted from graceful to grounded, channeling the same instinctive brawler’s energy he carried.

Yuji blinked. “Whoa. You’re… copying me?”

Yume grinned. “Imitation is the sincerest form of flattery~”

Then he lunged.

They traded a flurry of jabs and low kicks. Yuji was fast—but Yume was faster in how she read and mimicked. For every punch he threw, she countered with near-identical force and placement. No cursed energy, no enhancements—just pure skill, reflected back at him like a mirror.

Yuji skidded back, panting. “Dude… that’s freaky.”

“But kind of fun, right?” she beamed. Her chest rose and fell with breathless joy. “You fight like you mean it. It’s honest.”

“She likes you,” Ayumu murmured faintly from deep within.

Next up: Nobara.

“You’re gonna regret this,” Nobara smirked.

Yume blew her a kiss. “Only if you don’t hit hard enough.”

This time, Yume shifted again—her stance sharpening, chin tilted, feet angled like Nobara’s. Her movements turned snappy and rhythmic, laced with theatrical confidence. Every dodge and strike came with flair.

They danced around each other in high-speed precision. Yume didn’t even have a weapon, but still perfectly mirrored Nobara’s attitude, her momentum, even her dramatic pauses.

Nobara pulled back, huffing. “Okay, okay, I hate how much I love this.”

Yume clapped. “That’s what besties are for~”

Last: Megumi.

Yume turned to him, her smile flickering smaller. “Your turn, Gloomy-kun?”

Megumi stared at her for a long moment, then moved into position. “This won’t be like the others.”

Yume’s eyes narrowed slightly, colors shifting cool and calculating.

She moved like him.

Low guard. Silent feet. No wasted motion.

It was uncanny.

Megumi lunged, and for a moment, it was like fighting a warped reflection. Yume didn’t smile this time. She was quiet. Precise. Unnervingly aware.

Megumi pushed harder.

She matched. Each block. Each pivot. Every counterattack. Like she’d known him for years.

They broke apart at last, breathless, sweat on their brows.

Megumi stared hard. “…That wasn’t just mimicry.”

Yume tilted her head. “Maybe I just see you.”

He said nothing. But the suspicion in his eyes deepened.

Yuji flopped onto the grass. “Okay. You win. You’re terrifying. And awesome.”

Nobara collapsed beside him. “If she’s our classmate, I vote she leads.”

Yume sat cross-legged, laughing. “I just wanted to have fun. I didn’t expect you all to be so endearing.”

And she meant it.

Because even with her mask on— Even as the daughter of a curse watched them through borrowed eyes— Yamika liked them. All of them.

Especially the boy with Sukuna in his chest.

Here's the next scene where the first-years go out to dinner at a sushi place together—Yume (Yamika) plays along like it’s a normal outing, but inside, she’s struggling with the growing, genuinely confusing feelings she has for Yuji. It’s awkward, hilarious, and a little existentially gross for her—because he’s literally the vessel of her father.

Scene: Downtown Tokyo – Late Evening, Outside a Sushi Bar

Neon signs glowed along the street. The group had cleaned up and changed into casual clothes, still buzzing from the earlier sparring session.

“Okay, this place has the best sushi in Tokyo,” Yuji said proudly, leading the way with excitement in his step. “I’ve been dreaming about it all day.”

Nobara rolled her eyes. “You dream about food every day.”

“Exactly. This is a dream come true.”

Yume trailed behind them, hair tied in space buns, a star-shaped sticker under one eye. She wore a cropped bomber jacket and jeans with a colorful belt, her piercings glinting under the streetlights. Despite the playful outfit, her thoughts were a mess.

He smiles like an idiot. He gets way too excited about fish. And he literally houses the soul of my disgusting, ancient father. So why the hell is my heart doing this fluttery crap?!

She resisted the urge to physically shake it out of her system.

Megumi noticed her stiff expression and muttered, “You okay?”

Yume forced a sugary smile. “Mmhmm! Just thinking about… salmon roe!”

Nobara leaned in and whispered, “She’s totally crushing.”

Megumi’s brow furrowed. “Crushing on who?”

Nobara grinned. “Yuji.”

Yume nearly choked. “EXCUSE ME?!”

Yuji turned around. “What? Did someone say my name?”

“NO,” Yume and Megumi said in unison.

Inside the Sushi Bar

The place was cozy and softly lit, with bar seating and warm wooden walls. The group sat at a booth by the window. Plates began to stack quickly.

Yuji beamed at Yume. “You ever had sushi this fresh before?”

She blinked, holding a piece of tamago with her chopsticks. “I’ve… eaten many things. Fish included.”

Nobara laughed. “You’re so weird sometimes.”

“I’m trying to be relatable,” Yume grumbled, cheeks slightly red. She stole a glance at Yuji—he was talking to the chef now, asking about tuna belly.

He’s sweet. He’s brave. He’s warm. And he’s carrying the guy who once bit my finger off when I was six.

She physically winced.

This is so gross. Why couldn’t I be into, like, Inumaki or something?

From deep within, Ayumu chuckled faintly.

“He makes you soft. That’s new.”

“Shut up.”

“You’re blushing.”

“I will stab me.”

“You like him.”

“…I will stab you.”

Meanwhile

Gojo, across town, sneezed.

“Must be my girls,” he muttered, sipping his drink.

Here's a fun yet tense scene where Yuji excuses himself, and Megumi and Nobaraimmediately seize the opportunity to interrogate Yume about her “not-so-secret” crush. There’s teasing, suspicion, and just enough emotional weight beneath the surface as Yamikastruggles to keep the mask on—especially under Megumi’s sharp gaze.

Scene: Sushi Bar Booth – Moments After Yuji Leaves

Yuji wiped his hands on a napkin and stood up, stretching. “Bathroom. Don’t steal my eel roll.”

“Too late,” Nobara said, mouth full.

Yume gave him a two-finger salute, but didn’t meet his eyes. Her multicolored gaze was focused on her own half-eaten plate, clearly distracted.

As soon as the bathroom door closed behind him—

“Sooooo…”

Yume flinched.

Nobara leaned forward, predatory grin in full force. “Are we gonna talk about how you’ve been lowkey heart-eyes for Yuji all day?”

Yume blinked. “I don’t know what you’re talking about. This is just my face.”

Megumi raised an eyebrow. “Your ‘face’ blushes every time he says your name.”

“Coincidence,” Yume said quickly. “Or I’m allergic to his… vibes.”

Nobara gasped dramatically. “So it’s true! You do like him!”

Yume buried her face in her hands. “Please stop talking. I’ll die.”

“You totally do,” Nobara sang. “You tried to copy his fighting style like it was a love language. And don’t think I didn’t see the way you looked at him when he said he liked your hair.”

Megumi was less amused. “You’re acting. All day. But the way you react to him—that’s not part of it.”

Yume’s hands slowly lowered.

“Why do you care?” she asked, voice quieter now. “What if I do like him?”

Megumi leaned in slightly, eyes narrowing. “Because something about you isn’t right. I don’t know what you are yet, but if you’re going to hurt him—”

“I won’t,” Yume said sharply, her tone cracking the surface of her usual warmth. “I would never hurt him.”

That stunned both of them into a short silence.

Nobara softened first. “Then tell him. He’d probably be into it.”

Yume laughed—but it was tight, hollow.

Tell him? What? “Hey, I like you. Also, I’m technically two people in one body, and the other one’s a semi-cursed soul whose father lives inside your stomach.” Yeah. That’d go over great.

Instead, she smiled again, perfectly sweet.

“Maybe later. After dessert.”

Nobara snorted and passed her a piece of mochi. “Coward.”

Megumi didn’t smile.

“Just don’t pretend too hard,” he muttered. “One day you might forget who you are.”

Yume’s smile faltered. For a fraction of a second— She looked lost.

Then Yuji returned, plopping into his seat. “What’d I miss?”

Yume beamed at him. “Nothing important! Want the last shrimp roll?”

Yuji lit up. “Heck yeah!”

Megumi and Nobara exchanged a glance over their drinks.

Something was definitely going on.

Here’s a quiet, gentle bonding moment between Yuji and Yume (Yamika) as they walk back to the dorms. It’s light, warm, and doesn’t reveal anything about her true identity or feelings—but the connection they share feels real, and for a moment, Yume lets herself just be.

Scene: Streets of Tokyo – Walking Back to Jujutsu High

The night air was cool and crisp, carrying the faint scent of rain from earlier. The city lights shimmered off the wet pavement. Yuji walked beside Yume, hands tucked into his hoodie pocket, a soft grin on his face.

The others were a few steps ahead, arguing about whether or not Megumi actually cheated at the bill-splitting game.

Yume walked quietly, her arms swinging a little. Her colorful hair caught in the breeze, and her mood-swirled eyes had settled into a calm blend of soft blue and pink.

Yuji broke the silence first.

“You know, I was kinda nervous when Gojo said we were getting a new first-year.”

Yume tilted her head. “Oh?”

“Yeah. I thought, like, what if you were super stuck-up or scary or something?” He laughed. “Instead, you’re just… fun. Like, weird-fun. In a good way.”

Yume smirked. “Wow. Flattery from Sukuna’s Airbnb.”

Yuji groaned. “Don’t call me that.”

“Fine. Cursed Timeshare?”

He laughed harder now, bumping her shoulder lightly. “You’re evil.”

Yume smiled. And for once, it wasn’t rehearsed or practiced—it was real.

“...You’re easy to talk to,” she admitted softly.

Yuji glanced over at her, his expression gentler. “Same.”

They kept walking in silence for a moment, the noise of the city fading behind them.

Then Yuji asked, “So, what made you wanna be a sorcerer?”

Yume paused, then looked up at the sky. “...I guess I wanted to figure out who I was. And what I’m supposed to be.”

Yuji nodded like he understood. “Yeah. I think about that a lot too.”

She smiled again, more quietly this time. “Of course you do.”

Their eyes met for a beat—but there was no confession, no secrets revealed. Just a quiet, shared sense of somethingbetween two people who didn’t fully understand themselves—but understood each other.

And in that moment, Yamika let herself forget the curse in her blood, the secrets she held, and the danger she represented.

She was just Yume.

Fic/ Lore idea

Scene: Tokyo Jujutsu High – Late Afternoon, Courtyard

The courtyard glowed with soft amber light as the sun began its descent. Yuji, Megumi, and Nobara waited near the training grounds, the buzz of a rumored transfer student lingering in the air.

“Think she’s weird?” Yuji asked, chewing a protein bar.

“She’s a sorcerer,” Nobara said. “We’re all weird.”

Megumi simply narrowed his eyes toward the school gates.

And then—

“Hellooooo~!”

A flash of color burst into view.

Striding through the gates was a tall, striking girl with multicolored hair—bright streaks of pink, green, and blueflowing from thick white roots, the strands catching light like candy wrappers in the wind. Her uniform was stylishly tweaked: loose at the sleeves, cinched at the waist, with shimmering safety pins and patches. Piercings glittered on both ears, and a tiny gem sparkled below one eye, accenting her vibrant, swirling irises—like galaxies trapped in her stare, constantly shifting hue with her mood.

Today, they shimmered in warm tones of gold and coral.

She waved enthusiastically, practically skipping up the path. “I’m Yume Miran! First-year, spiritual support, unofficial snack queen, and now your new favorite person!”

Yuji’s jaw slightly dropped. “...Whoa.”

Nobara perked up, grinning. “Oh, I like her.”

Yume offered a radiant smile and held out a bag of pastel-colored dango. “Bribery is the sincerest form of friendship. Want one?”

Yuji took one immediately. “You're cool.”

Nobara took two. “You’re great.”

Yume giggled, twirling a strand of her cotton-candy hair around a finger. “You must be Nobara! You’re so much prettier in person—I’ve totally been stalking your mission logs. Let’s be besties, mmkay?”

Nobara beamed. “Duh. Finally someone with taste.”

Megumi, however, said nothing. His eyes were locked on Yume—quietly scanning her posture, her cursed energy, her too-perfect smile.

She turned to him with a warm, slow grin.

“And you must be the moody one. That’s okay. I’m really good at winning over emotionally constipated guys.”

Yuji laughed. “She’s not wrong.”

Megumi frowned. “You don’t feel like a first-year.”

Yume blinked, feigning surprise. Her eyes shifted color—cooler now, with hints of lavender. “Wow, spooky insight. Are you psychic?”

“I’m cautious,” he muttered.

She winked. “Good. You’ll need to be.”

Inside Her Mind…

They’re eating it up, Yamika murmured smugly from beneath the mask. Ayumu’s voice stirred faintly. Don’t hurt them. Hurt them? Yamika chuckled. Please. I like them. Especially the boy.

Her eyes flicked toward Yuji again.

He’s…interesting.

Scene: Tokyo Jujutsu High – Evening, Rooftop

The sun had dipped beyond the horizon, casting long shadows over the courtyard. Down below, laughter echoed—Nobara teasing Yuji, Megumi walking ahead, ever suspicious.

But above, on the rooftop, the air was different. Heavy.

Ayumu stood still, breathing slowly, her hands gripping the edge of the railing. The last remnants of her illusion faded—hair losing its candy-streaked color, piercings vanishing, makeup dissolving like dust. The youthful glow of Yume Miran melted away.

Only Akatsuki Kiko Ayumu remained—poised, powerful, and coldly beautiful. Her crimson eyes burned with silent thought.

Footsteps.

“Didn’t expect you to drop the mask this early,” Gojo’s voice drifted in, casual as ever. “Something wrong, Ayumu?”

She turned slowly, jaw tense.

“…Yuji.”

Gojo raised a brow. “What about him?”

Ayumu’s voice was quieter than usual. “He’s Sukuna’s vessel.”

Gojo's smile faded just slightly. “Ah. So… she told you.”

Ayumu nodded once. “Yamika recognized his cursed signature. She didn’t tell me right away. Not until she got too close.” Her expression darkened. “She said it was familiar. Like home.”

Gojo leaned against the railing beside her, the mood settling into a rare quiet. “I didn’t tell you because I wanted you both to meet him first. As Yuji. Not as Sukuna’s cage.”

Ayumu’s fists clenched. “You trusted her to hold back?”

“I trust you to hold her back.”

She looked away, voice almost a whisper. “She likes him.”

That made Gojo pause.

“…Yamika?”

“No,” she said after a moment. “Yume. Her. Me. All of us. I don’t know.” She pressed a hand to her chest. “It’s strange. When she’s around him, she doesn’t feel violent. She feels… drawn.”

Gojo watched her carefully.

“Is that dangerous?” she asked.

He smiled faintly. “Everything about you two is dangerous.”

A silence passed between them. Then Ayumu glanced toward the courtyard below, watching Yuji’s bright laugh echo under the night sky.

“Do you think… she’d hurt him?”

Gojo shrugged. “Depends. Would you?”

Ayumu didn’t answer.

Scene: Rooftop – Minutes After Sunset

The air had gone still. The tension from moments before lingered like smoke in Ayumu’s lungs.

Gojo stood beside her, unusually quiet. No teasing. No grin. Just him—watchful, waiting.

Ayumu’s fingers twitched slightly at her side. She could already feel Yamika stirring again, impatient to return to the “stage.”

“She’s coming back,” Ayumu murmured. “I can feel her pressing forward. I won’t be myself much longer.”

Gojo looked over, his face unreadable behind his blindfold, but his stance shifted—just slightly—closer to her.

“I don’t know when I’ll get another moment like this,” Ayumu said, her voice trembling despite herself.

He didn’t say anything.

So she turned to him.

Looked him straight in the face. Her voice cracked.

“I love you.”

A beat.

Gojo blinked. His usual mask cracked—just a fraction—but enough. His smile softened, more real than it had been all day. “Took you long enough to say it out loud.”

Her breath hitched in her throat.

“You knew?” she whispered.

“I’m the strongest,” he said softly. “But I’ve always been weak to you.”

She stepped forward, rested her forehead gently against his chest. “Please don’t forget me… if she wins.”

Gojo’s arms wrapped around her without hesitation. “She won’t. Not as long as I know who I’m fighting to protect.”

Then—

A flicker.

Ayumu's body jerked slightly.

The color in her eyes rippled. Pink streaks reformed in her white hair. Piercings shimmered back into place.

A smile tugged at her lips.

“Ugh, finally. I was getting bored,” Yamika’s voice purred out of the same mouth, eyes now radiant and shifting like oil in sunlight.

Gojo didn’t let go.

Yamika smirked lazily up at him. “Aww. Did I interrupt a moment?”

He just smiled. “Nope. You're just in time, Yume-chan.”

JJK OC IDEAS

Please help me decide what’s good and what I should and shouldn’t keep. New ideas are also welcome, I’m new to the jjk fandom.

Akatsuki Kiko Ayumu

Recently graduated from Tokyo Jujutsu High, Ayumu is a Special Grade Sorcerer who also happens to be a vessel to Sukuna’s daughter, Yamika. She is one of the only sorcerers who could rival Gojo and she could do it without Yamika. Her and Yamika have a sisterly, bff type bound. 

Ideas 1:

Cursed Technique 1: Hemokinesis (Blood Manipulation)

Allows her to control and weaponize her own blood.

Scarlet Needles: She hardens droplets into needles midair and controls them like remote weapons.

Blood Wreath: Wraps herself in flowing blood that acts as both armor and offense—cutting anything it touches.

Drawback: Overuse causes severe anemia, dizziness, or even temporary blindness.

**Cursed Technique 2: Foresight Weaving (Fortune Telling)

A ritual-based technique using charms, dice, cards, or bones. Grants glimpses of potential future moments within a short time frame (5–10 seconds ahead max).

Quick Glimpse: Reflexive use allows her to dodge or anticipate enemy attacks.

Reading of Death: If she completes a full ritual (30 seconds undisturbed), she can view someone’s most likely death scenario—and weaponize that psychological knowledge.

Limitation: Visions aren’t guaranteed and may show misleading or symbolic outcomes. Overuse can cause confusion, nosebleeds, and hallucinations.

**Cursed Technique 3: Veil Mirage (Illusions)

Creates realistic illusions within a radius, layered with cursed energy to fool all five senses.

Phantom Doubles: Projects false versions of herself during combat.

Memory Traps: Alters an opponent’s sense of surroundings, making them think they’re reliving past traumas or locations.

Counters: Can be broken by Domain techniques or anyone with sharp cursed sensory perception.

Cursed Technique 4: Mental Displacement

Disrupts the opponent’s thoughts by injecting cursed energy directly into their mind.

Mind Lag: Briefly causes confusion or stuns enemies mid-battle, disrupting their decision-making or motor control.

Curse Whisper: Allows her to "speak" inside someone's mind, seeding doubt, fear, or false commands.

High Risk: Requires eye contact or direct focus—if resisted, it can backfire and cause mental strain or backlash.

Domain Expansion: The Crimson Tarot

A ritual space in the form of a floating red-tinted realm surrounded by spinning tarot cards and dripping sigils.

In this Domain, she can trap an opponent inside a single tarot card vision—forcing them to experience a “fated” outcome based on one of her future readings.

She can manipulate blood and illusions freely within the domain.

If her fortune telling is accurate, her power is amplified drastically. If it’s wrong, she becomes vulnerable during the backlash.

Personality:

Outward: Calm, regal, poetic speaker, always observing

Inner Conflict: Fears she may become like the curses she manipulates—beautiful but false

Habits: Carries tarot cards, wears rings filled with stored blood, burns incense when preparing to read fate

Ideas 2

Akatsuki Kiko Ayumu – Cursed Techniques Overview

Cursed Energy Style:

Refined, ritualistic, and emotionally controlled. Ayumu’s cursed energy feels cold, fluid, and sharp—like blood ink being drawn across a ritual scroll. She rarely wastes movement and calculates everything like a long-term fortune.

1. Bloodcrafting (Shōketsu no Jutsu | 血結術式)

Category: Offensive / Trap-based Ayumu manipulates her own blood, infused with cursed energy, into weapons, sigils, or tools. She doesn’t need external blood sources—her body regenerates slowly, but overuse weakens her.

Key Applications:

Crimson Vines – Razor-thin blood threads that wrap around or slice enemies like barbed wire.

Blood Sigils – Draws temporary glyphs on surfaces or air. They activate when touched, causing explosions, illusions, or paralysis.

Bloodbound Tether – Links her body to someone else’s—if they injure her, they suffer a mirrored wound (short duration).

Limitations: If she loses too much blood, her control becomes unstable and vision begins to blur.

2. Fortune Threading (Enkaku no Unmei | 遠隔の運命)

Category: Support / Predictive Ayumu reads spiritual threads of fate using cursed tools—usually bone dice, inked cards, or red string. This isn’t absolute prediction, but a glimpse at high-probability outcomes.

Key Applications:

Thread Sight – In battle, she sees faint threads representing actions the enemy may take. Lets her dodge, counter, or feint accurately.

False Fate – Can implant a false prediction into the enemy’s mind. Makes them question their next move.

Death Thread Ritual – Requires 15 seconds of uninterrupted casting. If completed, she sees how someone is most likely to die—and can use that knowledge to psychologically manipulate them.

Limitations: Cannot predict random variables (like someone under mental manipulation or outside interference).

3. Red Veil Illusions (Aka no Gen'ei | 赤の幻影)

Category: Illusion / Disruption Ayumu casts layered, multi-sensory illusions by weaving cursed energy into the five senses. These are usually subtle and manipulative rather than flashy.

Key Applications:

Sensory Swap – Temporarily reverses left/right or up/down sensations in enemies, disorienting them.

Echohall – Creates a hallway or room that loops infinitely until the target realizes it’s an illusion.

Whisper Illusion – Implants a voice into someone’s mind, mimicking a loved one or past trauma to break their guard.

Limitations: Illusions don’t work on those with Domain Amplification or extremely high cursed energy perception.

4. Mind Bloom (Shinsō no Hana | 心層の華)

Category: Psychological / Mental Invasion Ayumu can touch a person's cursed energy field and implant a thought, emotion, or subtle memory distortion.

Key Applications:

Emotion Shift – Causes enemies to feel false emotions like regret, joy, guilt, or dread—useful for interrupting combat rhythm.

Mirror Thought – Briefly syncs with an enemy’s instinctive thought process, letting her copy their fighting rhythm.

Memory Sway – Makes someone believe she said or did something she never did (e.g., "I already placed a seal on you").

Limitations: Requires close proximity or physical connection. Drains her focus, leaving her vulnerable if used too long.

Synergy Between Techniques:

Ayumu often starts fights indirectly, using illusions or false emotions to unnerve or confuse.

She uses blood sigils to control space and fortune threading to decide when to strike.

When pressed, she switches to Crimson Vines and Mirror Thought to engage in direct combat, never without a layered mind game.

Her opponents rarely realize she’s already influenced them—until it’s too late.

Ayumu is a young sorcerer known for her quiet intensity, emotional depth, and resilient heart. She’s not the loudest or the flashiest, but when she moves—people watch. There’s something in the way she carries herself, like she’s walking a tightrope between light and shadow, grace and rage.

Ayumu isn’t just strong because of cursed techniques or battle skills—she’s strong because she’s endured, she’s chosen, and she keeps choosing the harder path.

Core Personality Traits:

1. Empathetic but Not Soft

Ayumu feels deeply—pain, joy, sorrow—but she’s not fragile.

She doesn’t believe in looking away from suffering; instead, she stares it down and learns from it.

People come to her when they need quiet understanding, not loud motivation.

“You don’t have to say it. I already know. And I’m still here.”

2. Morally Grey, But Self-Aware

Ayumu isn’t a goody-goody hero. She’s made ruthless choices when she had to—but she owns them.

She holds others accountable, but never pretends to be perfect herself.

Believes the ends can justify the means—but only if you don’t lose yourself in the process.

3. Independent but Not Distant

She doesn’t rely on others emotionally, but she doesn’t isolate either.

She values earned trust and mutual respect, not blind loyalty.

If you earn her friendship, it’s for life—but betray her, and you’ll never get back in.

4. Intellectually Sharp

Ayumu reads people well—picks up on microexpressions, tone shifts, lies.

She's strategic in battle, often reading the flow of cursed energy and intent before others do.

She’s also emotionally intelligent, which is part of why Yamika listens to her.

5. Quietly Rebellious

She doesn’t start fights with authority—but she never blindly obeys it.

If the higher-ups make a call she disagrees with, she’ll find her own way—even if it means going rogue.

She questions everything and often chooses compassion over command.

Motivations and Inner Conflict:

Her Main Drive:

To protect what matters without becoming what she hates.

Ayumu is always asking herself:

How far can I go before I become a monster?

What’s the point of saving others if I lose myself?

Can someone like me—who holds a curse inside—still do good in this world?

These questions keep her grounded. They’re what separate her from sorcerers who become twisted by the system—or by their own trauma.

Combat Style (Briefly, without techniques):

Fluid and fierce—Ayumu blends elegance with lethal efficiency.

Fights with a measured calm, striking only when necessary—but when she does, it’s devastating.

Uses misdirection, feints, and psychological tactics to unnerve enemies.

Relationships & Interactions:

With Yamika:

As we explored, Ayumu sees Yamika as a companion, not a curse. Their bond is her most dangerous and most meaningful connection.

With Mentors (Gojo, Nanami):

Gojo likes her for her unpredictability, and sees her as someone with the potential to “rewrite the rules.”

Nanami respects her quiet strength and often acts like a reluctant uncle figure—calm, firm, and protective.

With Allies:

Ayumu tends to draw in outcasts, broken people, or those who’ve been judged.

She listens. She validates. And she gives people the courage to be who they are.

Symbolism & Themes Around Her:

Ember imagery: She burns quietly—but she never goes out. Even when smothered, she glows in the dark, waiting for the moment to ignite.

Balance: She walks the line between curse and sorcerer, love and destruction, justice and vengeance.

Mirror and Shadow: She reflects the best in others—but carries the shadows they fear.

Yamika Sukuna

Curse Technique Ideas:

1. Blood Garden (血の苑 - Chi no Sono):

Grows blood-soaked flowers or thorns from surfaces (or bodies).

Each flower blooms by feeding off fear or pain.

They explode or entangle, depending on the user's mood.

2. Cursed Blossom Illusions:

She creates a beautiful illusionary realm full of deadly flora.

Victims experience a dream-like hallucination where time distorts and perception is warped.

Combines her illusion craft with Sukuna's psychological intimidation.

3. Inherited Malevolence (Technique passed down from Sukuna):

Can create small versions of Sukuna’s slashing attacks (Dismantle/Cleave), but in an artistic or graceful form—like ribbon slashes or blossom-shaped bursts.

Possibly has her own variation: “Petal Severance” – a slash that cuts not flesh, but “intention” (it stops cursed techniques or instincts briefly).

4. Heavenly Womb of Rot:

Symbolizing a cursed "birthright," she can implant seeds of decay inside people during battle, causing them to rot from the soul out unless they break her illusion.

This acts as both a trap and a slow-burn execution.

Her Domain Expansion could resemble a crimson garden of decay, where every bloom is a cursed wound.

Personality Overview:

Yamika is the embodiment of chaotic allure—a cursed beauty who thrives on attention, domination, and fear. She's a confident, flirtatious sadist who enjoys playing with her prey—mentally, emotionally, and sometimes romantically—before delivering a crushing blow. Her presence is both intoxicating and terrifying.

Flirtatious & Teasing:

Constantly flirts with enemies, allies, or even people she plans to kill. Her tone is silky, her smile wicked.

Uses pet names like “darling,” “sweet thing,” or “little plaything.”

Touches people without warning, trailing a finger along their jaw, or plucking lint from their shoulder—then laughing when they flinch.

Treats combat like foreplay: “Don’t go dying too quickly—I like them squirmy.”

Cocky & Confident:

Carries herself like a goddess among mortals—she fully believes she’s superior in blood, beauty, and brains.

Often mocks others for their “pathetic emotions” or “heroic complexes,” but she’s never overtly angry—just amused.

Loves being underestimated, only to make her opponent regret it.

Tends to speak as if victory is inevitable: “You already lost, darling. You just haven’t realized it yet.”

Twisted Sense of Love & Ownership:

Gets weirdly possessive over anyone who impresses her in battle or shows resistance to her charms—treats them like pets or potential “toys.”

Might “fall in love” with an enemy mid-fight, only to try and break them emotionally.

Will jokingly propose or flirt with someone she's torturing: “Marry me, won’t you? Or do I have to break your legs first?”

How She Views Sukuna:

Calls him “Daddy” in a teasing or sarcastic tone—she’s not afraid of him, but she does crave recognition.

Fluctuates between mocking Sukuna’s brutality and admiring it, saying things like: “Daddy could learn a thing or two from me. I kill with style.”

May be rebellious, but would never allow anyone else to insult him—only she gets to do that.

Voice & Mannerisms:

Speaks with a playful lilt, like she’s always on the verge of laughter.

Frequently licks her lips, tilts her head, or leans in far too close when talking.

Laughs when people scream—especially if they beg or confess.

When irritated, her voice gets calm and cold, which is more dangerous than when she’s smiling.

Yamika & Ayumu – Cursed Soul Sisters

Though Yamika is the daughter of Sukuna and a powerful curse in her own right, her relationship with her vessel, Ayumu, defies the typical parasitic dynamic seen in Jujutsu Kaisen. Instead of domination or hatred, the two share an unexpectedly strong, sister-like bond built on mutual respect, survival, and an eerie sense of loyalty.

How the Bond Formed:

When Yamika was sealed inside Ayumu, it wasn’t immediate chaos. Unlike Sukuna, Yamika didn’t try to overpower her host—she was curious. Intrigued by Ayumu’s fire, vulnerability, and values, Yamika watched quietly... and then started talking.

Over time, the two began to understand each other. Where most curses would try to erode a host’s will, Yamika found herself admiring Ayumu’s conviction—and even sharing some of it.

Shared Morals and Values:

Freedom & Autonomy: Both women value their freedom to make their own choices, and hate being used as pawns—whether by higher-ups, curses, or fate.

Selective Mercy: Though Yamika is a flirtatious killer, she doesn’t enjoy senseless violence. Like Ayumu, she believes that those who are truly innocent should be spared—though she’ll still tease them.

Hating Hypocrisy: They both loathe those who wear masks of justice but act out of selfishness. Whether it’s a corrupt sorcerer or a self-righteous exorcist, Yamika and Ayumu see right through it—and agree they deserve to be exposed or destroyed.

Value of Beauty and Identity: Ayumu takes pride in being herself, despite being judged. Yamika, though more chaotic, respects this deeply. She believes in being unapologetically who you are—even if the world fears you.

Their Sisterly Dynamic:

Protective of Each Other: Yamika doesn’t allow just anyone to harm Ayumu. If someone threatens her vessel, Yamika’s usual teasing tone vanishes—and something colder, older, and deadly takes its place. Ayumu, meanwhile, has grown to defend Yamika emotionally when others call her a monster.

Constant Bickering... Like Sisters: Ayumu rolls her eyes at Yamika’s flirtatious remarks or drama queen moments. Yamika pokes fun at Ayumu’s moral dilemmas or crushes. But beneath it all, there’s a fierce loyalty.

Late-Night Conversations in the Mindscape: When Ayumu can’t sleep, Yamika talks to her. They share memories, joke about people they hate, or argue about what “love” really means. Yamika sometimes sings in a soft voice, just to mess with Ayumu—or comfort her.

Blended Strengths: In battle, they’ve found ways to fight in sync—Ayumu with her martial arts and technique, Yamika lending cursed energy or manipulating the field with poetic precision. Their synergy is eerie... and powerful.

Shared Body, Shared Will – Yamika & Ayumu’s Synchronization

As their bond matured, Ayumu and Yamika developed a rare, almost seamless ability to cohabitate their body, going far beyond the typical vessel-curse dynamic. Unlike Sukuna and Yuji, who often clash violently over control, Yamika and Ayumu function more like two souls sharing a single body with fluidity and mutual understanding.

Body Sharing Dynamics:

1. Voluntary Switching:

Either one can take the lead depending on the situation.

Ayumu usually handles daily life, emotions, and personal interactions.

Yamika steps forward during battle, interrogation, or when Ayumu is in danger—or just when she’s bored and wants to "play."

The switch is smooth, instant, and often accompanied by visual cues—like a change in eye color, body language, or voice tone.

2. Co-Presence:

Even when one is in control, the other is fully aware, watching, and can comment or guide from within.

Their mental link allows them to have full conversations internally, whether arguing, joking, or strategizing.

It’s not uncommon for Ayumu to laugh at something Yamika says in her head, confusing those around her.

Moments of True Fusion:

In moments of deep emotional stress or combat intensity, their personalities can blend into one, creating a version of Ayumu that moves with Yamika’s confidence and cruelty, or a version of Yamika softened by Ayumu’s empathy.

This fusion isn’t just physical—it’s spiritual. They feel each other's pain, joy, and instinct.

“When I bleed, she burns. When she smiles, I breathe. We are two voices in one song.” – Ayumu

Unique Advantages of Their Bond:

Dual Processing: Yamika can warn Ayumu of danger mid-battle or point out emotional manipulation others might miss.

Emotional Anchoring: Ayumu keeps Yamika grounded when her bloodlust flares. Yamika, in turn, lends Ayumu strength when she’s emotionally overwhelmed.

False Vulnerability: Enemies who think they’re facing just Ayumu are often surprised when Yamika suddenly takes over mid-fight with a smirk and a chilling “My turn, sweetheart.”

Other People’s Reactions:

Sorcerers are deeply unsettled by how well they function together—some even fear Ayumu has been corrupted beyond saving.

Friends often can’t tell who they’re speaking to unless they look closely at her eyes or listen to the subtle change in her tone.

Enemies often think they’re hallucinating when Ayumu suddenly starts flirting like a predator—or when Yamika shows unexpected mercy.

The Sorcerers’ Perspective: Gojo & Nanami on Yamika and Ayumu

Gojo’s View – Amused Respect & Quiet Worry:

Gojo Satoru, with his sharp intuition and ability to see beyond the obvious, doesn’t believe for a second that Yamika behaves simply because of compatibility. He has a theory—one he sometimes shares half-jokingly but always with serious undertones:

“Yamika’s not the kind of curse who follows anyone. She’s not tame. She’s impressed. And she’s smart enough to know when she's outclassed—morally, at least.”

He believes Yamika stays in line because Ayumu doesn’t need her to be powerful. That terrifies most curses. But for Yamika? It intrigues her.

Gojo sees it as a balance of equals, not dominance.

“Ayumu can be ruthless all on her own. She chooses restraint. And Yamika? She's in awe of that kind of control—because she doesn’t have it herself.”

Gojo teases Ayumu about being the only person to ever “tame a curse by making it fall in love with her spine.”

Nanami’s View – Analytical & Protective:

Nanami is more reserved, but he’s observed Yamika’s behavior with Ayumu over time and drawn a strategic conclusion:

“This is not possession. This is partnership. And if anything… the curse follows the sorcerer’s lead.”

To Nanami, Yamika isn’t the threat people think she is—not because she lacks power, but because Ayumu’s will is stronger.

He’s watched Ayumu fight, bleed, and win without ever surrendering herself to Yamika’s influence, and in that strength, Yamika found something rare: respect.

“Curses obey power. Yamika obeys something greater: admiration. Ayumu’s self-mastery is the chain, and it’s one Yamika chooses not to break.”

Nanami worries, though—if Ayumu ever falters, emotionally or morally, Yamika might take the wheel… and never give it back.

Why Yamika “Behaves”:

Not fear. Not submission. But fascination.

Yamika is used to being feared, hated, or sealed. But Ayumu stood beside her, looked her in the eye, and never flinched.

That single act rewrote Yamika’s entire perspective.

“She doesn’t need me to win. She just lets me be part of it. How could I not adore her?”– Yamika, half-mocking, half-sincere

Yamika may flirt, tease, and provoke, but she’s genuinely impressed by Ayumu’s strength, restraint, and ability to lead a path of her own—without fully rejecting the curse that lives within her.

In Ayumu, Yamika sees not weakness—but a mirror of what she could be, if she had ever been human.

Ayumu’s Perspective on Yamika – A Curse, a Companion, a Reflection

Ayumu doesn’t view Yamika as just a curse lodged in her soul. She’s too perceptive, too emotionally grounded for that. While the world might call Yamika a monster, a demon, or a ticking time bomb, Ayumu sees something else—something far more nuanced and far more personal.

At First: Caution and Curiosity

When Yamika first awakened inside her, Ayumu was wary—but not afraid. She knew who Sukuna was, and the idea that his daughter now shared her body should have been a nightmare.

But Yamika didn’t strike immediately. She didn’t scream, claw, or try to rip control away.

She watched. She listened.

And Ayumu, ever-introspective, found herself doing the same.

What Ayumu Saw in Her:

1. A Mirror of Power—Untamed and Unrefined

Ayumu realized quickly: Yamika is powerful, yes—but that power lacks anchor or direction. It’s pure, raw, destructive instinct—but not without intelligence or emotion.

“She has the strength to destroy cities, but the heart of someone who’s never known love without fear.”

Ayumu doesn’t see a mindless curse. She sees potential. Someone who could be more if they just had someone to walk beside—rather than chain them down.

2. An Equal—Not a Tool or a Burden

Ayumu has always believed that people—even curses—deserve to choose who they want to be. And Yamika? For all her flirtation and violence, she chooses not to dominate Ayumu. She offers. Suggests. Even teases.

But never forces.

“She doesn’t need me. But she stays. That means something.”

Ayumu admires that. Deeply.

3. A Companion in Darkness

Ayumu has had her own brushes with pain, loneliness, and being misunderstood. While she keeps her heart warm, she knows what it’s like to carry something monstrous inside.

Yamika isn’t just a curse. She’s the voice in Ayumu’s mind that whispers strength when she’s weak, beauty when she feels broken, and fury when injustice burns too hot.

They don’t always agree—but Yamika never abandons her. And Ayumu would never abandon Yamika.

“If I can love the worst parts of myself... maybe she can learn to love herself too.”

Their Bond, From Ayumu’s Side:

Protective: Ayumu will argue with Yamika, but she won’t let others insult or dismiss her. Yamika may be a curse—but she’s hers.

Empathetic: Ayumu senses the pain behind Yamika’s smirks. She can feel it ripple through their shared soul. And in moments of silence, she offers gentle understanding, not judgment.

Grounded: Yamika tempts her toward darkness, toward revenge, toward indulgence. But Ayumu chooses her own way—and Yamika respects her more for it.

In Ayumu’s Words:

“Yamika is fire—beautiful, unpredictable, and dangerous. But fire isn’t evil. It just needs something strong enough to hold it. I don’t fear her. I see her. And I think… maybe she’s starting to see herself too.”