A private training record of Ling, a beautiful transsexual with a sister gyaru look. Ling, the eldest son of a noble family that has continued for generations in the region, has been blessed with beautiful features since he was a boy. Ling has lived his life following the orders of his strict father, a local notable, whom he respects. But his life has been turned upside down by the discovery of several SM magazines hidden in his father's study. The stories in the magazines depicted the training of female heroines, who were chained by a collar and restrained with handcuffs and ankle shackles. Shame, pain, humiliation, pleasure, climax... he was Kokoro by the sight of the heroine servicing a man's sex. The figure that even fascinated her strict father was engraved deep in the adolescent Ling's Kokoro. However, what fascinated Ling's Kokoro was the 'beautiful masochistic woman', which became the ideal form that Ling desired. The ideal was to turn into a woman by taking hormones... Ling's feminized body and masochistic tendencies mixed together, and her suppressed sexual desires ran wild. "I want a body more suitable for a masochistic woman!" This wish did not only make her body more feminine by directly modifying it to create feminine curves, but also made her hesitate to decorate it with piercings. As a result, her pierced nipples became sexual organs comparable to the clitoris. When her nipples were pinched as if to crush the piercings, pleasure ran through her whole body. The pain that pierced her brain turned her nipples into exposed erogenous zones, and Ling climaxed just from her nipples. The pleasure continues even after the pinching stops, and the remaining afterglow transforms the whole body into an erogenous zone, giving rise to the next pleasure. After that, the endless climax continues even after climaxing... Please check out the infinite orgasm of the masochist Ling for more.