Reborn as the Villain's Little Sister

Chu Yunshu transmigrated into an old novel and became the younger sister of the villain. In the ending, her brother turns evil, breaks both her legs, and she dies of depression.

Luckily, she arrived before her brother went astray. To leave herself a way out, Chu Yunshu decided to get involved herself, build up his affection for her, and raise him into an optimistic, well-rounded young man.

So...

When her brother wants something to eat, she unhesitatingly says:

"Give me a few hours. I'll learn to make it right away!"

When her brother gets sick, she stays by his bedside all night:

"Don't be scared, Brother. Yunshu will stay with you."

Even when someone comes looking for a fight with her brother, she blocks the alley with a stick in hand:

"You can't even beat me, and you think you can fight my brother? Who do you think you are?"

Everyone at No. 1 High watched as, after that little girl transferred in, their fearless big shot stopped smoking and fighting, and even started carrying a workbook over to pester the math teacher with questions.

Everyone was dumbfounded. "Is this the power of love?"

Chu Qin: "Get lost! That's my sister, my actual sister!"

"If anyone tries to date her, I won't let them get away with it!"

But the moment he turned around, he saw his sister pinned against the back wall of the classroom by his academic rival, who was twirling her hair. "Then who am I? If you go out with me, your brother will definitely approve."

Chu Qin: "..."

"You mangy Jiang Yan! Who's your brother? And get your filthy paws off my sister!"

Theme: A little story about a brother and sister getting along