Description:

Episode 1: Middle-aged teacher with a strong sexual appetite, Busujima Tanehisa, is caught by an otherworldly succubus named Lima Grimalkin. While he is immobilized by a spell, Lima begins to masturbate him, and due to his excess sexual desire, he is tasked with re-educating the succubi who have failed the exams. He is introduced to two failed succubi, Iko Bicorn and Ruku Orcus, who initially display a rebellious attitude, but are subdued by mysterious tools. And so begins the orgasmic re-education of the arrogant, dark-haired succubus, Iko!