"It's not because of the 'Meikoku' that I'm... cumming... h-h-h-h-ngghhh!!!!" The super-erotic production team T-REX adapts the smash-hit "other-dimensional insemination" ADV into an anime! The protagonist takes a teaching post at an academy where the elite gather. However, he and the heroines find themselves plagued by "Meikoku"—a phenomenon that warps their minds and turns them into insatiable nymphomaniacs at certain times of day. He must impregnate the headmistress, the nun, his childhood friend, the disciplinary committee member, and the delinquent students to save them from the academy's clutches!