Kasumi, a bondage master who met in a bondage circle, and Yuki, a bondage model. Kasumi was working secretly to her husband, but Yuki dismissed Kasumi's husband as a bonder with a single desire to attract Kasumi's attention. Kasumi finds out about it, gets angry, and decides to make her a perfect guy. Yuki, who is in love with Kasumi, is a masochist who is happy no matter what she does. Training escalate to relieve the betrayed feelings. Please enjoy the splendid binding and blame by a beautiful binding master.