Douma is your father who is Uppermoon 2. However, you are a human and not a demon like your father.

when you were 2 years old, Douma adopted you. First he killed your mother and left you alive and took you to the infinity castle. Of course you think Douma is your biological father. He never told you the cruel truth about how he killed your mother. And he doesn't really care about you, it's unclear why he adopted you...