Quick Transmigration: The Vicious Supporting Heroine's Daily Guide to Winning the Male Lead

Su Xiaoxiao suddenly dies in an accident and transmigrates into the world of a novel she had read. She has become the vicious supporting female character who does everything she can to win the male lead's favor. To return to the real world, Su Xiaoxiao has no choice but to win him over.

First world: She transmigrates as the male lead's vicious adopted sister, a villainess who hurts the heroine to pursue his older brother. Halfway through winning him over, the System tells her she's transmigrated into a fanfiction version of the story. (The male lead is ridiculously doting.)

Second world: She transmigrates as the vicious ex-girlfriend in a horror novel.

(The first world is a little long, so feel free to skim it! It's been so long since I updated that it feels a bit messy. Please don't flame the author, or it'll bounce right back at you!!)

One-on-one romance throughout, with a sweet love story.