The Demonic Dragon Turned Butler( Devil is a Part-Timer x Male reader)

Azi Dahaka the most feared Evil Dragon fought against the Humans, Angels, and Holy Dragons it was a long grueling battle that ended with Y/N being separated from his wives and his Generals and being sent to the human world. With no magic and no place to stay he reluctantly accepts being a butler to a rich girl in Japan. How will Y/N's journey end?