Satonaka Ikko is an apprentice Buddhist priest. He is sent to Saien Temple whose chief priest is his grand mother, Jotoku. What waiting for him there are severe training, purification jobs, and 6 nuns. The situation living with nuns of the same ages sounds enviable, but actually he is treated as an errand boy, and his purification skill cannot compare with theirs. However, when he has worldly desire, his power becomes stronger than anybody.