[Fake Siblings, Obsessive and Morally Unrestrained Little Sister x Gentle, Patient, Highly Moral Brother Who Gets Driven Crazy by Her Teasing]
Shu Wei has fallen in love with her brother.
They are not blood-related, and they have no legal relationship.
She cannot understand why he always keeps her at arm's length.
No matter what she does, her brother always furrows his brow and looks away, as if suppressing his disgust. He tells her, "Little Sis, things shouldn't be like this between us. I must have neglected to discipline you properly, which led you astray. From now on, I'll teach you properly and help you become 'normal.'"
Her brother thinks she's abnormal.
Fair enough.
Normal people don't fall in love with their brothers.
Shu Wei gazes at him, smiles, lets go, and, for once, listens to him. "Brother, I'll do as you say. I'll be 'normal' from now on."
Her brother's furrowed brow finally relaxes, and he seems to breathe a sigh of relief. "It's enough that you realize your mistake and are willing to change. From now on, we'll go back to how things were."
Shu Wei is very sensible. From that day on, she really does go back to how she used to be, no longer causing her brother trouble.
She even moves on faster than he expected, starting to spend time with her classmates, just as he wanted.
And yet, the light in her brother's room stays on later and later, often burning all night.
Until one night, a boy walks Shu Wei home and sees her to the building.
As soon as she goes upstairs, she sees her brother sitting in the living room, as if he has been waiting for her all along.
"Did you say yes to him?"
His voice is hoarse, and the air is thick with the smell of smoke.
Shu Wei looks confused. "Wasn't it you who told me to spend more time with other boys and stop focusing all my attention on you? Didn't I do what you said?"
Her brother suddenly gets to his feet, his tall figure looming over her. His voice is almost pleading. "Don't say yes to him, little sister."
"Anything he can do, I can do too."
Boarding school setting, no blood relation, not on the same household register
Content warning: melodramatic amnesia trope. The heroine hasn't become sensible; she has amnesia and has forgotten that she loves her brother, and then he goes crazy.
Theme: Only by leaving the past behind can you be reborn.
