USBA-064 Uniform bondage, punishment bondage made her experience the joy of ropes. This pure body is tightly bound in Mei Uesaka's hands.

After finding out about my mother's sexual fetish and realizing I have the same masochistic tendencies… I accidentally see my mother and stepfather having SM sex. Seeing my mother's blissful expression while being bound, Mai, who became interested in bondage, masturbates. While my mother is away, I get scolded by my stepfather for peeking and end up getting punished. This becomes the trigger for training, and Mai falls into becoming a rope slave●…