A Nobody Transmigrated Into a Book, So I've Been Good, Please Let Me Go

[Super sweet 1v1 + transmigrate into a book + wish fulfillment + side character + face-slapping] [Carefree young lady vs. powerful big shot] Jiang Niannian died of an illness. Then she transmigrated into a side character in a book who didn't survive three chapters. Fine, fine, fine! If I can't live, then nobody else gets to, either. The original male and female leads want her to be their handy little plot-pushing assistant? Jiang Niannian: I'm out. I can't push anything. Her body's ex-boyfriend wants her to buy into his grand promises and keep acting as his ATM. Jiang Niannian: Anti-gaslighting expert reporting for duty. I'll even send you off with a big slap. Her body's friend asks, “Niannian, what happened to you?” Jiang Niannian: I haven't changed. I'm a different person now. They want her to live just like her body's original owner? They must be dreaming. As long as I change fast enough, life will be nothing but happiness, with no mishaps and plenty of love. [Male lead's POV] [The first time they meet] Some big shot: I saw you driving. Jiang Niannian: I wasn't. Don't make things up. [The second time they meet] Some big shot: I'll take you to the hospital. Jiang Niannian: I fainted. I don't remember. [The third time they meet] Some big shot: I want to pursue you. Jiang Niannian: I... I'm in poor health. I'm bad luck for my husband. [The fourth time they meet] Some big shot: Are you going to keep this up? Jiang Niannian: I've learned my lesson. Please let me go. [No emotional self-torment. If something's wrong, just go crazy about it.] Jerk: Is this what you call love? Do you even deserve it? Jiang Niannian: Right, right, I don't deserve it. And what the hell do you deserve? Original heroine: *sob sob sob* Jiang Niannian: Which prestigious school did you graduate from? You're so good at acting. Some big shot: Jiang Jiang, here, take your Dragon-Slaying Saber. Coward: T﹏T