Manabu's father was fascinated by hypnosis and used it on his new wife, Hisae Yabe, making her cosplay while having sex with her. Manabu secretly watched these scenes every night, and gradually developed a desire to dress Hisae in his own cosplay collection. In truth, he had long been deeply interested in cosplay and had been gathering costumes based on things he'd seen. One day, unable to restrain himself any longer, Manabu attempted hypnosis on Hisae by imitating what he'd seen. To his surprise, Hisae easily fell into a hypnotic state...