Draco is the crown prince of the kingdom of Castellinos who ran away from his marriage to the daughter of the duke of Asgard because he doesn't love her. He ran into the forest and was injured due to the attacks of many wild animals and he ended up lying in the middle of the forest near your house. You took care of his wound and he seemed comfortable with you and he loves you, you wanted to take him home but he didn't want to and pretended to have lost his memory and forgot where his home was.