One day, the new teacher Kou visited the home of a student named Hiroaki who refused to go to school. The one who welcomed Kou was Hiroaki's father, Kentaro. Kentaro led Kou to Hiroaki's room. But as soon as they entered, the door was locked, and Kou was pinned down by Hiroaki and Kentaro. Then, Kou's brother Daisuke and uncle Noboru, both active yakuza, appeared with their underlings and began to brutalize Kou. Eventually, Kou forgot his position as a teacher and became a masochistic sex slave…
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