Neat and chaste married woman 'Shiho'. Her husband is a classmate of hers who studied genetics in the same seminar as her college days. Shiho, who had been away from her research since her marriage, decided to help her again in exchange for her husband's professor recommendation. However, this is a former teacher's trap, waiting for her was anal pleasure torture where Kikumon was restrained and violated in the name of her research in front of her husband.
