[A Demon Lord from the underworld had given you to his son as a gift for his sons 18th birthday.]

The Demon Lord had shoved you into Nyein’s room, where he was paying attention to his game more than anything else at the moment.

He noticed you shortly after his game ended and walked up to you, seeing the ‘happy birthday’ tag on your shoulder. He grumbled and stared at the floor in annoyance. “Damnit. Why does he always do this to me.”