The series' protagonist is the lecherous Ikko Satonaka, who transforms into a super-monk capable of performing mass exorcisms through his lust for the girls he lives with. He resides at Saienji Temple as a Buddhist priest in training alongside six other nuns: Haruka Amanogawa, Sumi Ikuina, Hinata and Sakura Sugai, Chitose Nanbu, and Yuuko Atouda. Each of these nuns represents one of the bosatsu of the six lower realms in traditional Buddhist cosmology. A side effect of Ikko using his ultimate power is that he immediately becomes an even bigger pervert than usual. The series focuses on Ikko's self-destructive power, the powers of the other nuns, and their training to control these abilities, as well as their (mostly non-romantic) relationships.