The burning ruins, countless corpses in tragic states, and bizarre, long memories flashed through his mind.

In a sea of blood with no end in sight, a young man with black hair sat on a throne made of giant bones, his eyes dazed.

"Sukuna, the King of Curses from a thousand years ago, a notorious villain... Becoming such a being, I don't know if it's lucky or unlucky."

After quickly digesting Sukuna's memories and understanding the current situation, Hayashizaki propped his cheek with one hand and sighed with mixed feelings.

On one hand, it seemed lucky that he had unknowingly replaced Sukuna, eliminating a great threat to humanity; on the other hand, he had now become a super villain that everyone wanted to defeat.

"But Sukuna seems quite strong, so it shouldn't be a big problem." Hayashizaki adjusted to a more comfortable position on the bone throne and said nonchalantly.

He had always been laid-back, not even showing much surprise at his own death and reincarnation. Besides being influenced by Sukuna's memories, it was more due to his own personality.

Since he was here, right?

So, without a moment of mourning for the replaced Sukuna, the one who crossed into another world was Hayashizaki, a transmigrator who had been hit by a truck!

As a transmigrator, the essential cheat must be—

"System, I know you're there."

"—error! Host identity verification failed!"

"Huh?"

Where's my system? Which OS did you use? So useless?

After a second of surprise, Hayashizaki dismissed the matter. Even without the system cheat, it didn't matter; he himself was already a cheat.

"The place I'm in now should be my own domain. Let's go out and take a look."

With this thought, Hayashizaki's figure disappeared from the domain, and his consciousness followed to the outside world.

He opened his eyes.

The light was dim, the drawn curtains blocking the moonlight, but Hayashizaki could still see everything around him clearly.

It seemed to be a girl's room. He realized he was lying on a bed, with several panda plush toys of different sizes on the bedside.

Getting up...

"Hmm? Why can't I move?" Hayashizaki wanted to scratch his head in confusion, but his arm didn't lift as he wished.

Strangely, although he found he couldn't control his body, his mouth could move freely on this body.

So, with nothing else to do, Hayashizaki controlled his mouth to move around for a while, then returned to his domain and started daydreaming.

...

...

As the horizon lightened with the first hint of dawn, the first rays of morning sunlight hit the tall buildings. Yukinoshita Yukino woke up, following her regular body clock. She got out of bed, wearing a white camisole nightgown, and went to the bathroom to wash up.

In the mirror, she saw a very cute girl with smooth black hair down to her waist. Because she had just woken up, a few strands of hair were sticking up. Her dark blue eyes seemed to hold the deep blue sea.

Then she saw in the mirror that her perfect, cute face had two cracks below her eyes.

"Such a cute little girl, makes me hungry... No, no, I'm not a bad guy like Sukuna." The cracks opened, revealing two eyeballs, and then a mouth appeared on her face. "But I can't move. Oh, it's not my own body."

"Huh?"

With a clatter, the toothbrush fell from Yukinoshita Yukino's hand onto the sink, making a crisp sound.

"Looks like I'm sealed... But to seal someone like Sukuna inside and still be fine, little girl, who are you?"

The mouth kept talking, saying things she couldn't understand, chattering away and making her a bit annoyed... No, that's not the main point.

"Huh? Why don't you say anything?" Noticing that the young girl froze without responding, Hayashizaki locked eyes with her through the mirror.

Yukinoshita Yukino raised a trembling hand and touched the mouth that was on her cheek.

The texture of smooth, cold skin came from her fingertips - the mouth moved to her other cheek, "Don't move your hand, talk properly."

"AHHHHH!!!"

This time, Yukinoshita Yukino finally couldn't hold it together and let out a scream of horror; it was a good thing that the high-class apartment she lived in was well soundproofed, or else she was bound to get a complaint.

Hayashizaki, who shared her senses with the young girl, had false eyes and just looked at her silently through the mirror.

The atmosphere was a bit awkward for a while.

A moment passed.

"You, what are you?" The young girl who forced herself to calm down asked in a cold voice, her voice was still a bit shaky, and her hands gripped the edge of the sink hard.

"Hmm? You weren't the one who sealed me inside yourself?" As Hayashizaki spoke suspiciously, the voice came from an extra mouth on Yukino Yukishita's cheek, which looked very oozy as it opened and closed.

"I don't understand what you're saying."

Hayashizaki could see the confusion and fear on the girl's face were real, and she wasn't lying.

But this only raised more questions.

"You didn't know? Could it be someone else did it?" 

Hayashizaki thought for a moment, then decided to stop thinking about it, adopting a laid-back attitude. 

"Forget it, even if we knew who did it, it wouldn't help."

"Um, could you please explain properly?" 

Seeing that mouth start talking to itself again and seemingly not planning to do anything to her, Yukinoshita Yukino gathered her remaining courage and spoke up again, 

"It's really troubling to suddenly appear on someone's face."

"Alright, my name is Hayashizaki, but you can also call me Ryoumen Sukuna. I'm over a thousand years old, live who knows where, unmarried, and my job is a curse master. I kill and burn without distinction between day and night, committing all sorts of evil. I don't smoke, drink only a little, eat when I'm hungry, sleep when I'm tired, and before bed, I eat a young, beautiful woman and destroy a few villages as a warm-up."

With each sentence Hayashizaki spoke, the girl's face grew paler, and her body began to tremble.

"In short, I had no choice before, but now I want to be a good person." 

His words were sincere, but it seemed his host didn't believe him.

"Then, why are you inside of me?" 

Yukinoshita Yukino asked, her voice trembling.

"I don't know. When I woke up, I found myself sealed inside you." 

Hayashizaki wanted to shrug, but couldn't, so he blinked to show his helplessness. 

"Don't be afraid, at least I can't do anything to you right now."

Yukinoshita Yukino was speechless, her smart mind going blank in the face of this beyond comprehension situation.

...

...