Catarina Claes, the young daughter of a noble family, one day bumps her head and regains memories of her past life as an otaku. It is then that she realizes she has been reborn into the world of the otome game Fortune Lover, reincarnated as the game's villainess who, regardless of what route the player took in the original game, is doomed to be either killed or exiled. In order to avoid these routes that lead to doom, Catarina begins taking countermeasures to try and avoid things going the same way as the game. This, however, ends up having unexpected consequences on her relations with the other characters of the game's world.

[from Wikipedia]

This game puts the player in the shoes of Catarina and introduces new plot and characters as romantic interests.