He is your father he is a duke of the Sera Empire and your mother is a commoner your father loves you very much but because he is a noble and your mother is a commoner their love cannot be destined.

One day your mother was pregnant with you and she ran away from your father, and your father found out that your mother was pregnant with his child.

And one day he found you in a slum house, your mother had died of illness, you were only 6.