Yoshikawa Haruo is just your average middle school boy who doesn't have many goals, other than to live a long life. He is the eldest of his family, and lives with his 3 younger sisters in a home with no parents. He is completely unaware of his sisters' magical powers, and supposedly has some of his own, but they have not been discovered yet. One day, a mysterious, yet beautiful, girl appears before him. This is Mamiya Ayumi, who also has magical powers. Her goal is to "make Haruo into a man" so that she can break the curse that was put on her as a young child. To do so, she is forced to work as a maid in their house. She's adored by all the boys in school, but hated by Kurusou Yuri, the serious, driven, and orderly class president who has had a crush on Haruho since they were young…

Izumi Koutarou's family have lived in Izumi Hot Spring for generations. But the spring suddenly dried up a couple of years ago, resulting in a family huge debt. As they prepare to skip town to flee from debt collectors, the guardian deity of the house, Konoha-sama, appears. Konoha-sama, (who was supposed to be a really fearsome god), appears instead as a cute girl–wearing no clothes. What will happen to their family debt problem? And what is the power of Konoha-sama?