A horny teenage monk involuntarily transforms into an unstoppable exorcist the moment he sees a naked girl, the show commits completely to this premise and never blinks. The comedy lands because it understands the absurdity of weaponizing teenage lust against actual demons. You get genuine supernatural stakes wrapped around the kind of dumb-funny logic that only works when everyone involved knows exactly what they signed up for.

Sixteen-year-old Satonaka Ikkou arrives at the Saien Temple as a first-year trainee, sent by his parents to study under his grandmother, the chief priestess. Waiting for him are harsh training, purification work, and six attractive young nuns his own age. Living alongside them sounds enviable, but his purification skills fall far short of theirs, so he mostly ends up running errands. There is a catch, though. When Ikkou sees one of the girls naked, or gives in to more worldly desires, his powers awaken and he becomes a super-monk capable of massive exorcisms, often saving the day for the temple. What unfolds is an ecchi romantic comedy with a supernatural twist, built around one boy's clumsy path through temple life.