The mother's sexual quirks that I came to know. And the fact that I too possess the same masochistic tendencies... I must not peek at my mother and stepfather's SM sex. Seeing my mother's ecstatic expression as she is bound, I end up masturbating, intrigued by bondage. I get scolded and punished by my stepfather for peeking while my mother is away. That incident leads to further training, and Mei gradually descends into the role of a rope slave...
