Married woman Sakura Tsukishima is held captive and trained in bondage. Tied up and unable to move, she is subjected to torture on her throat, chest and vagina. Sometimes she is left with a vibrator fixed to her vagina, enduring the torture without knowing when it will end. However, at the same time she is awakened to an unknown pleasure and accepts the penises of unknown men inserted one after another. This is Sakura Tsukishima's shocking bondage release!!