Good news: reborn on an island nation, I have a slender, alluring childhood sweetheart. Bad news: this childhood sweetheart can infinitely split, possesses mind control, and has a fiery temper. Good news: a timid, tall, delicate, and endearing neighbor has moved in. Bad news: after her death, she will become a super-demon, the first to break the rule of hiding under the covers, possessing a variety of abilities, including but not limited to infinite clones, shapeshifting, time and space control, and the contagion of malevolent thoughts. The girl who hasn't become a demon yet: I just need a little space... really just a little, even if it's just to help behind Kasyapa-kun... The infinitely split childhood sweetheart: remembering the dream where the child emerged from the operating room, knife in hand, with a wicked smile, asking whether it was a doctor or a protector... This sleazy woman needs to stay, but I need some means of suppressing her...

[Yandere][Slice of Life][Single Female Lead][Imprisonment][Sweet Romance]

I like yandere characters; this is a story.

A yandere likes me, that's double happiness.

Lin Xuan is a seasoned yandere enthusiast. He is a big fan of yandere characters in games and anime and can talk about them in great detail.

But in reality? He is cautious and never gets into trouble; he just wants to enjoy playing with his online "good brother" and his virtual characters.

Until the day we met in person, the brother I was promised to be was actually a woman.

"It's just that I empathize with the characters in the story."

Lin Xuan: ? ? ?

Whatever, can't I just delete the other person's contact information?

He treated her like a brother, chatting about masterpieces, everyday life, going to anime conventions together, strolling around together, and going out to play whenever he had free time.

but...

[Single female lead][Slightly yandere younger sister][Mutual salvation][1v1][Brother complex][Slow pace]

Li Yuming's father remarried, bringing him a somewhat aloof and difficult-to-get-along-with younger sister named Gu Xiaomei.

Even more frightening is that the girl also suffers from a serious mental illness!

Li Yuming wasn't really good at taking care of people, so he could only figure out his own way of taking care of Gu Xiaomei.

Gradually, the girl's beautiful smile appeared more and more often.

…

After the class reunion, the drunk boy was taken home by the girl.

The boy was somewhat dazed, and the girl in front of him seemed to be leaning closer.

"Brother...you're being naughty..."

"Don't be a 'snake in the cream' (i.e., steal fish)..."

Li Yuming is having trouble sleeping; he keeps having the same dream lately.

In his dream, he was tied up by a young girl.

The girl in his dream simply stood quietly beside him.

She seemed to have done nothing, yet she also seemed to have done everything…

The introduction is inadequate; please proceed to the main text.

(This book is also known as: After my autistic sister became enlightened, she wanted to tie me up every night)