Yu Luna, a modern social animal suspected of sudden death from excessive overtime, was lucky enough to get a chance to return to reality, but only if she succeeds to capture all the male protagonists in a Western fantasy-themed Otome game.
If you have the aura of a heroine, even if you haven't played Otome games much, it should be okay, right?
But what's the matter with dressing up as the wasteful daughter who often bullies the heroine in the game!