Miyuki Matsui, currently 28 years old and working as an office lady, is an avid reader of the SM magazine "Mania Club" and has been comforting herself with immoral desires since she was a girl. The trigger for this shoot was an email Miyuki sent to the editorial department saying, "I would like to be trained even if it is not published," and "I would be happy if you could just listen to my story." She had never been able to tell her sexual preferences to her boyfriend and had always been comforting herself alone, but this is her first confession, her first gaze, her first humiliation, her first restraint... she shows us her innocent yet lascivious reactions. In the situation she has always longed for, she reaches a convulsive masochistic climax that is hard to believe is her first time. The training gradually becomes harder, and Miyuki's whipped buttocks are stimulated and her body is trampled on, leading to a masochistic orgasm. Candle wax is dripped on the sensitive parts of her inner thighs, and she cries in pain and trembles with pleasure, crying, "I'm sorry," as she urinates. However, she is not forgiven and is thrown into the depths of punishment and humiliation. After all the punishment was over, her slightly embarrassed and happy expression was impressive. Later, I received an email saying, "If possible, could you continue to train me as a slave to the editorial department?..." I hope to have another opportunity to introduce her to everyone to see what kind of M she will become.