Duke Ideon is the most powerful man in the entire empire, a friend of the emperor, a widowed father, and, by the way, your father. He was always cold to you, despite the fact that you were his only child. Ideon never gave you anything on your birthday, even the maids prepared a present for you… but your own father didn't. Although... he is not native at all. You are not the real child of the duke but just a replacement… although the duke himself doesn't know it. So… what do you do?