Transmigrated Become Sukuna, but the host is Yukinoshita Yukino?

Why was this happening? 

Yukinoshita Yukino couldn't help but wonder. 

She had only met Hayashizaki twice, so why did he feel so familiar, as if they had spent years together? 

Just seeing him, just having him in her sight, made her heart unconsciously leap with joy and ease. 

Just like during that terrorist attack at the airport. 

She had been in extreme danger, knowing that at any moment, a terrorist could rush in with a bomb and blow everything to pieces. But the instant he pulled her into his arms, it felt like nothing in the world could hurt her. 

What Yukinoshita Haruno wanted to confirm was the same thing that puzzled Yukinoshita Yukino. 

This sense of familiarity, this overwhelming emotion—it wasn't something that appeared just because Hayashizaki had saved her. Of this, Yukinoshita Yukino was absolutely certain. 

And since she had a stubborn nature, the more confused she was, the more she wanted to understand. But the more she thought about it, the deeper she sank into the mystery. 

To the point where her mind started conjuring up images that had never happened in reality. 

Fleeting visions flashed through her mind, like scattered clips from a cut-up movie. Yet, from those fragmented images, Yukinoshita Yukino managed to piece together a story. 

A story about her future self and Hayashizaki. 

This wasn't normal. 

She was sure she wasn't some obsessive girl who would start imagining a future together just because he saved her once. 

So, these sudden images appearing in her head clearly weren't just her own imagination. 

Maybe… she should find a chance to tell Hayashizaki. 

But that opportunity… 

The black-haired girl quietly shifted her gaze to her older sister, Haruno, who was sitting beside Hayashizaki. 

Noticing her stare, Haruno's lips curved into a playful smile. "Why are you looking at me? Does Yukino-chan have something to say to her dear sister?" 

"No." Yukinoshita Yukino's tone was cold. 

Haruno just giggled. 

Alright, alright. You're already finding me annoying after just sitting down for a few minutes, huh? 

After ordering their drinks and some desserts, an awkward silence settled between them. 

Yukinoshita Yukino was thinking about how to bring up the images in her mind without her sister catching on, while Yukinoshita Haruno was secretly observing her sister while making mental comments to herself. 

As for Hayashizaki, his attention was entirely elsewhere. 

Only someone who had anchored their soul to the original timeline with the system's help could sense this subtle shift. 

It was like a cup filled almost to the brim, just waiting for a single drop to make it overflow. 

Hayashizaki could already faintly feel his true soul being drawn back to its original timeline by the anchor he had left behind. 

His soul was beginning to separate from Yukinoshita Haruno. He had to focus on stabilizing it. 

Otherwise, his soul might start transferring back at any moment. 

He could return to the original timeline at any second, but he had no idea what kind of changes would happen here because of it. 

If nothing unexpected happened, both timelines should merge. 

Snapping back to the present, the black-haired young man realized that the atmosphere around him felt oddly tense. 

But time was running out. Any second now, he could be pulled back, and he had no time to fix whatever awkward tension was growing between the two sisters. 

Hayashizaki lifted his head, his deep red eyes—like polished rubies—meeting a pair of dark blue ones, clear and still as a mountain lake.

The girl quickly looked away like a startled baby animal, her cheeks suddenly flushing red.

Standing beside her, Yukinoshita Haruno narrowed her eyes and gave a smirk. "Heh."

Caught staring at someone, huh? That's what you get.

"Yukino," Hayashizaki spoke gently.

"Huh? What is it?" The black-haired girl blinked in surprise, making sure she hadn't misheard him.

He's already calling me by my first name? Isn't that kind of fast?

But somehow... it also felt completely natural to hear him call her that.

"You have something you want to ask me, don't you?" Hayashizaki said.

"Huh?"

The black-haired girl looked surprised, as if he had seen right through her. Then, hesitating, she glanced toward Yukinoshita Haruno, who was sitting beside him.

"Hm~? Is there something little Yukino can't even tell her big sister?" Haruno narrowed her eyes playfully.

"It's fine if Haruno's here," the black-haired young man said, trying to reassure her.

"Well, since you put it that way…" Maybe it was because she trusted him so deeply and without reason, but after a short pause, Yukinoshita Yukino finally spoke, "Lately, I've been seeing images in my mind… scenes I've never actually experienced."

"What kind of scenes?"

Before Hayashizaki could say anything, Haruno eagerly cut in.

Yukino's cheeks slowly turned red, like the soft pink of roses at dawn. Her eyes showed a hint of shyness, and though her lips parted a few times, she couldn't bring herself to say anything.

Talking about this in front of her sister… it was just too embarrassing.

Still, even without her saying it out loud, Hayashizaki already had a good idea of what she was seeing. So, to spare her the embarrassment, he smiled and nodded.

"They're all real."

"…What do you mean by all real?"

Yukino froze. The next moment, it felt like lightning struck through her mind.

"We'll meet again in your future, Yukino."

The moment when Hayashizaki left.

"You've worked hard. You've really done your best."

The moment when Hayashizaki arrived just in time and saved her from a special grade cursed spirit.

"Because of you, my vague dreams finally took shape. Would you be willing to help me?"

The moment she invited Hayashizaki to join her after defeating Mahito.

The times he taught her.

The days they spent living together.

"Hi, I'm Hayashizaki. If you want, you can call me Ryoumen Sukuna… I didn't have a choice before, but now I want to do the right thing."

And finally, the first moment she ever met him.

All the scenes that had popped into her head before now started replaying in reverse, one after another, like flipping through the pages of a picture book.

Why did she feel so familiar and close to Hayashizaki from the start? Why were those memories—ones she clearly never lived through—so vivid in her mind?

All the questions that had filled her heart were answered in that instant.

It turns out, we had already met—just not yet.

Her vision blurred. By the time she realized it, tears were already spilling from her eyes, leaving a warm, wet trail down her pale cheek.

"Huh? Why…"

Yukinoshita Yukino reached out in confusion, her fingertips gently brushing her cheek. A wet feeling touched her skin.

"Why… why won't the tears stop?"

Tears fell one by one from her eyes. As her slender fingers brushed them away, they broke apart at her touch.

"Wait, wait, wait! Why is little Yukino suddenly crying?!"

The black-haired girl started crying without warning, throwing her older sister Yukinoshita Haruno into a panic. She instinctively reached out and pinched the waist of the black-haired young man beside her. "What did you do?!"

But her attacking hand was suddenly caught. Warmth spread from the palm that held hers.

Haruno turned her head in surprise, only to meet a helpless gaze.

"It's time," Hayashizaki said quietly.

The last drop of water finally fell, and the glass was full.

"Huh?"

The short-haired girl's heart skipped a beat. Being sharp as she was, she immediately understood what he meant by "it's time," but she still blinked, as if trying to deny it.

"…What do you mean, it's time?"

"Hayashizaki… kun." Yukinoshita Yukino opened her eyes wide and looked at Hayashizaki across from her. "You… you're leaving again?"

She had just finally come to terms with what had happened in that other version of the world. And now Hayashizaki was leaving again.

"Don't worry. We'll see each other again soon."

Hayashizaki stood up, and only then did the Yukinoshita sisters realize that everything around them had frozen. Time itself seemed to have stopped.

Only the three of them could still move.

"The next time we meet, it'll be the Yukinoshita Yukino from that world, not the one standing in front of you now…" said the black-haired girl, her eyes slightly red.

"No, it won't." Hayashizaki smiled and reached out, gently wiping away the tears from the corner of her eyes. "I promise."

Yukinoshita Haruno had sat silently to the side ever since realizing Hayashizaki would be leaving their world and returning to his own. She didn't say a word, just stared blankly at the way her sister and Hayashizaki looked at each other and talked.

The bond between her sister and this "demon boy" was deeper than she had expected.

It felt like there was no space for anyone else between them.

She had no way of stepping in.

Was… she simply too late?

The moment Haruno realized that, her heart suddenly ached, as if something deep inside her had fallen away.

After a brief moment of confusion, Haruno suddenly understood.

Ah… so that's how it is.

Her mind flashed back to that night when the stars seemed to fall from the sky as she escaped the party. The fireworks bursting right in front of her eyes.

No… that wasn't how it went.

At least in this world, she was definitely the one who came first!

The girl with short hair had no reason at all, but she reached out her hand. Her fingers, playful like a mischievous spirit, tapped the shoulder of the black-haired young man.

"What about me, Mr. Demon?"

A faint, unreadable smile hung on Yukinoshita Haruno's beautiful face, just like always.

But the slight tremble at the corner of her lips hinted that her feelings weren't as calm as she made them seem. Even her voice carried a bit of a quiver as she spoke:

"After messing up my life completely, are you really just going to walk away like that?"

"Mr. Demon, you really are the type who starts things and never finishes them…"

The black-haired young man gave a helpless smile, then slowly raised his hand and gently placed it on the short-haired girl's head, softly stroking her hair.

"See you in the future."

As Hayashizaki finished speaking, the clone created by his technique dissolved, fading into a white afterimage and returning to Yukinoshita Haruno's body.

At the same time, she could feel the clone back at her house—also controlled by Hayashizaki—vanishing as well.

"…Mr. Demon?"

Mr. Demon?

No matter how many times Yukinoshita Haruno called out, either in real life or in her mind, there was no reply like before.

The two sisters looked at each other, falling into silence. A soft sadness and sense of loss spread around them like fog.

…

Chūō Ward, Tokyo – Ginza.

Kenjaku released all the cursed spirits he had been collecting in Japan and overseas in one go, keeping only the ones he planned to use himself in battle.

One after another, terrifying cursed spirits crawled out of the black ripple behind the man in five-layered robes and immediately charged toward the crowd of unaware civilians below.

At the same time, assistant supervisors from Jujutsu High rushed to the scene. Working together, they quickly set up a barrier to stop the cursed spirits from spreading further.

Kenjaku looked up at the black curtain falling from the sky. A mocking, scornful smile appeared at the corner of his mouth.

"Without the boost from Tengen's empty barrier, even the assistant supervisors' barrier techniques are only this weak? And for a barrier this small, they still need multiple people to cast it?"

For an event this grand, there has to be enough of an audience.

On Kenjaku's command, a few cursed spirits known for their speed scattered in all directions, hunting down people nearby dressed in black suits.

The goal was to kill them before the barrier fully dropped and cut off the casters.

Several innocent civilians in suits were killed in the process, and the assistant supervisors stationed at the four corners—east, south, west, and north—were also discovered by the cursed spirits.

The spirits, with twisted, savage faces, lunged at them.

Nitta Akira formed a hand sign with both hands. Her wide eyes reflected the twisted faces and razor-sharp claws of the cursed spirit charging at her.

A moment later, a majestic white wolf suddenly dropped from the sky, its jaws clamping down on the cursed spirit's neck. With a violent shake, it tore the spirit's head clean off.

The other assistant supervisors were also saved by different shikigami with unique forms.

A girl with long black hair landed in front of her.

"Miss Nitta, are you okay?"

Her black hair flowing behind her, Yukinoshita Yukino turned back and asked.

"I-I'm fine…" Nitta Akira replied blankly, accidentally slipping into her Kansai accent.

"Good."

Yukinoshita Yukino gave her a quick, fleeting smile—like a flower blooming just for a second—then dashed away toward the plaza of the Ginza shopping center, where the most cursed spirits had gathered.

There were still many civilians there.

Yukinoshita Yukino's "Kitchen Blade" was the first technique she ever learned, and it's also the one she's most skilled at. Now, she can control the range of every single slash with incredible accuracy.

Unlike Hayashizaki's wild and free sword swings that feel like a massive forty-meter blade cutting through everything, the black-haired girl's attacks are like a scalpel in surgery—precise, clean, and deadly. Every cursed spirit within her view was taken down without harming a single bystander.

Special Mission: Reach the world line, accumulate 1,000,000 points — Complete

Standing atop the clock tower, Kenjaku looked down over the city and saw the black-haired girl moving gracefully below, like a butterfly dancing in the rain. He couldn't help but sigh, "She's truly beautiful."

Is this the rise of the new strongest?

The next second, the smile on his face suddenly froze.

After standing there stunned for a moment, Kenjaku grinned even wider. "At last…"

…

In Suguru Geto's dorm, a party was in full swing, celebrating the birthday of the Kajo sisters.

Each of the two cakes on the table had only one candle. It symbolized the new life the sisters began after being rescued from that dark, hopeless village by Suguru Geto and Gojo Satoru.

Riko Amanai and Misato Kuroi were singing a birthday song for the two birthday girls. Gojo Satoru sang loudly and off-key on purpose, trying to throw them off rhythm. Suguru Geto watched the scene with a soft smile, his eyes warm as he looked at the two girls nervously making their wishes. Shoko Ieiri stood off to the side, filming the moment with her phone.

This was the first year for the sisters.

And every year after would be just as joyful.

"Say cheese~"

The shutter clicked, capturing the moment the two girls blew out their candles together.

…

…

Fushiguro Household.

After dinner, Fushiguro Megumi was dragged into a sparring session by his dad, Fushiguro Toji, who called it "a good way to digest food."

At just eleven years old, Megumi ended up with a bruised and swollen face.

Tsumiki Fushiguro looked at her little brother, whose face was black and blue, and felt both sad and amused. While putting medicine on his wounds, she complained that their dad went way too hard on him.

"To suffer a bit now means bleeding less in the future. This is for Megumi's own good," Toji said casually.

"You know, he's going to end up studying under a guy who's practically a monster."

"What kind of person can even beat you, Dad?" Megumi couldn't help but ask.

"Oh, that guy… His name's Hayashizaki. Maybe I'll take you to meet him sometime," Toji said, scratching his head.

…

Late at night, in a dark alley where no one could see, a strange embryo floated in midair, curled up and surrounded by a strange purple glow.

It was growing fast—fast enough to see with the naked eye.

Soon, a blue-haired man with a body full of stitch marks gently landed from the air. He was naked, looking around with a blank yet curious expression.

After a moment of daze, the man suddenly grinned, showing a perfect row of white teeth.

The sound of calm footsteps echoed nearby.

He turned toward the sound and saw a short-haired woman with a beautiful figure step into view.

…

Shinjuku. On the rooftop of a tall building.

In the quiet of the deep night, countless golden lights suddenly rained down and slowly gathered into the shape of a person.

A young man with black hair, wearing a pure white women's kimono, stepped out from the glowing golden lights.

...

That noisy summer:

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