The senior student she had a crush on, to whom she confessed her feelings, was actually a forceful sadist, and the vice principal at the time was also an S&M maniac looking for submissive girls. Mizuki had been tied up and used as a toy by two men since she was a student... And six years later, as if summoned, Mizuki was appointed as a new teacher at her alma mater, and memories of the past flooded her mind like a torrent! Uniform nose hook spanking, bloomer crotch rope torture, bondage forced rape, and brush strokes on the anterior sphincter of the vagina...