I'm in Love with the Villainess! - Watashi no Oshi wa Akuyaku Reijou.

Synopsis

Ordinary office worker Rei Oohashi wakes up in the body of the protagonist of her favorite otome game, Revolution. To her delight, the first person to greet her is also her favorite character, Claire Francois—the main antagonist of the story! Now, Rei is determined to romance Claire instead of the game's male leads. But how will her villainous ladylove react to this new courtship?!