The Book's Female Side Character Is So Beautiful, the Male Lead Abandons the Plot

[Slice of life, aristocratic academy, transmigration into a book, male rivals competing for the heroine, all the male leads are virgins, everyone's favorite, doted on by all, the most beautiful girl in the book] Content warning: The heroine isn't strong. She's a socially anxious good-for-nothing, bullied by the group but also doted on by them~ To enjoy endless money without having to work, Shixu decides to take a big gamble and transmigrates into a book as the vicious female supporting character. She has to play the male lead's fickle ex-girlfriend. After winning him over, she starts seducing his three best friends, too. In the end, her scheme is exposed and he dumps her. Then she gets hit by a car while crossing the street and dies. She thinks the mission will be easy, but underestimates just how much of a good-for-nothing she is. With help from the System, she stumbles and scrambles to juggle all four male leads. She finally hangs on until the heroine makes her appearance and is ready to happily collect her money and leave, only to discover she can't contact the System anymore! In a locked room, the four men surround her. "Shishi, you lured us in. Where do you think you're running?" P.S. The heroine only throws her weight around at home. She only dares to talk back to the System~ Updated F4 character profiles: Ling Yu: A cool, handsome guy with black hair and a strikingly beautiful face. He looks world-weary and acts aloof around outsiders, but he's actually short-tempered and childish. He likes bottled oolong tea; Gu Qingkong: A pink-haired foxlike guy with a seductive air. He loves flamboyance, is narcissistic, and usually wears brightly colored clothes. He's bold and ostentatious; Ji Xun: A white-haired, elfin beauty. He looks ethereal and pure, but is a sadist at heart who delights in teasing people, especially Shixu; Lu Shou: A strikingly handsome mixed-race man, full of masculine charm. He's quiet and reserved, cold on the outside but warm on the inside, and upright in character.