Bondage Nymphomaniac

緊縛色情夫人

Also known as 浮気な人妻　金曜日の誘惑, Kinbaku shikijô fujin

Toshihiko, a university student, meets a married woman named Chizuko. Chizuko's husband is a pervert who ties her up and tortures her with cruel techniques. Chizuko, who is used to this abnormality, learns true pleasure when Toshihiko embraces her in the missionary position, and the two begin to live in an adulterous love...