I Got Transported Into an Otome Game as the Wicked Villainess

[Quick transmigration + otome games + sweet romance, both leads' first love + fragmented male leads + love triangle drama + healing + the one who got away] After unlocking the Happiness System, the little cat demon enters an otome game collection. Her mission is to save the tragic villains and turn them back to the righteous path. The good news: she's entered an otome game, and the tragic villain is one of her targets. The bad news: this is a collection of high-difficulty otome games where she has to play an evil supporting character and win over the male lead. From the start, everyone's affection level is in the negatives. “...” Help, the little cat demon is crying. How is she supposed to handle this?! World One: Redemption [willful, naive, silly beauty x lonely, pitiful real young master] World Two: Campus [precious, spoiled heiress x taciturn, double-personality loyal bodyguard and study companion] World Four: Beast World [easily ruffled little cat x fierce, brave big shot]