Eight years after remarriage, he has been training his wife Mayumi (Kanno Hana) in bondage to satisfy his maniac sexual orientation, but recently he has become less interested in his wife who has become completely M. One day, Shuichi, a child with his ex-wife, reported his marriage. Shuzo, who has decided to live together in two households, is attracted to the young body of his new wife, Kaede (Rui Hiiragi).