The devil, Kuroto, begins to move! In order to revive the Demon King who sleeps in Kosuke, Kuroto attacks with his own hands in the form of Natsuki, but finally succeeds in reviving the Demon King. Jord and Rhea can’t move anything on the side where Kosuke turns into a demon king. However, Fauna, who vowed to help her Kosuke, confronts the Demon King at the expense of her own life.