What Should I Do If My Sister Becomes a Vicious Supporting Actress?

[A refreshing article about a wealthy family + a nerdy school girl + a sweet favorite of the family + the end of the world] Yu Zheng, a nerdy girl, passed through the book and entered a brainless novel, becoming the younger sister of a vicious female supporting character. To be precise, she became the biological sister of the female villain in the book, a little cannon fodder who died young and only occupied a few sentences in the extra story. In order to survive, she worked hard to overcome her own obstacles and try to escape the death plot. As a result... The world ended! Life is not easy, Zheng Zheng cries. ———— There was a famous sickly girl named Yu Zheng in Dongyigao. She has a weird temper, is weak, falls when touched, and becomes ill at the first sight. To exaggerate, if an eight-year-old child blows on her, she can float more than ten meters... On the day when the end came, the sky was high in the east. Student A: I'm knocking, I'm knocking, there's a girl doing a bare-handed solo with a zombie! Student B:! Brother, do you think that woman looks familiar... Student C: Damn it, it's the sickly girl from our school! Oh my god, the world is a fantasy.