"Rejoice! Your marriage has been decided!" When her father suddenly said this to her and asked her the name of her husband, Lillian, the daughter of a poor baron, recalled memories from her previous life. According to her memories of her previous life, this is the world of an otome game, and Lillian is just a mob killed by her fiancé, Duke Owen, who is the final boss and target to be conquered. Even though she has worked hard to survive, she doesn't want to die! In order to keep her from being killed, Lillian decides to try her best to please Owen. When she does that, she seems to be doted on by him for some reason...!?