Quick Transmigration: Even an Unknown Supporting Heroine Wants to Win the Male Lead!

A novel-loving college student transmigrates into a book, only to find herself as a supporting character among supporting characters! She was planning to settle into a wealthy, comfortable life, but the male lead is just too handsome. The moment she changes the original plot, the gears of fate begin to turn, and the original heroine, Gu Qinglin, starts to change. Should she question everything, or keep choosing...