Transmigrated into a Book! The Background Character Was Reborn as Everyone's Beloved

[School life + healing + sweet romance] Only after Chen Shishi died did she discover that she was the saintly older sister in a book. She wasn’t even a supporting female character, barely more than a random passerby. As the legitimate wife’s daughter, she was always considerate of her father’s mistress and the mistress’s daughter, while growing estranged from her own mother. In the end, the green-tea mother and daughter ruined her chances of getting into high school! She spent her whole life working at a factory, putting in so much overtime that she worked herself to death! When she opened her eyes again, she found herself back at the moment she had first arrived at the home of her “scumbag dad and his mistress.” Chen Shishi: “There’s still time! Just watch me take on the mistress and my bargain-bin little sister, and ruin their whole family!” She gets into a top high school and rubs their faces in it! But can someone tell me why they’re not like they are in the novel!? What’s with you, green-tea guy? Stay away from me. I hate green tea the most! Some guy: “???” (A threatening look) Chen Shishi: “Ahem, ahem, okay, I guess some green tea can be good too. (Sob, sob.)” In Chen Chubei’s eyes, Chen Shishi is the only one for him. In Jiang Yin’s eyes, Chen Shishi is a light he doesn’t dare hope for. In Chen Yao’s eyes, Chen Shishi is a fairy.