Shinitakunai no de, Zenryoku de Kobitara Dekiaisaremashita!

When her father suddenly asks her about her engagement, the poor baroness Lillian remembers her memories of her previous life. This is the world of Otome games, and Lillian is a mere mobster who is killed by her fiancé, Duke Owen, the "last boss and target of the game"! And the cause of death is that she "stepped on his landmine"! Lillian doesn't want to die, so she decides to "flirt" with her fiancé "as much as she can"!