My Brother's the Richest Man Alive, So What's Wrong with Me Acting Arrogant?

(A lighthearted, silly comedy with a bit of humor. Both leads are virgins! The heroine has always had the personality of a brash, domineering heiress, and the hero is a sly flirt beneath his reserved exterior!) Ren Nanxi transmigrates into a book. The good news: Her brother is the richest man in the world, so she never has to work and has more money than she could ever spend. The bad news: She just beat her brother's girlfriend into the hospital, and now her brother hates her. Ren Nanxi has no choice but to hide overseas, crying as she nibbles on steamed buns. Shen Zhao happens to pass by. Taking pity on her, he tosses her a few bills. “Aw, you poor thing.” Ren Nanxi: ????? After the richest man, Ren Nanshao, leaves his outrageously troublesome sister overseas for a while, he finds that she has stopped being vicious and has instead become even more brazen. At an in-person event one day, he sees his sister pin a popular young actress against the wall and beat her senseless. Just as he's about to step in and scold her, he hears his sister's sweet voice: “My brother is the richest man in the world. So what if I hit you?” Ren Nanshao silently pulls back the foot he'd stepped forward with. Well, she does have a point.