The story revolves around Raul, a boy who did not become a Hero, since the demon lord was already defeated just before his Hero exams. His dreams dashed, Raul spends his days working at a magic shop in the capital. One day, a part-time job seeker appears at the shop with an amazing résumé: Name: Fino Previous Occupation: Demon Lord Heir Motive: Because my father was defeated The work comedy revolves around this former Hero-in-training and the daughter of the demon lord.

Miyakawa Hikage is an elementary school girl, living with her older sister Hinata. Every day they have to struggle with the poverty and financial ruin that go along with an otaku spending lifestyle.