The third scenario of Immoral Study describes yet another somewhat unusual teaching experience in the life of Mr. Hitosuji, a young and handsome private tutor. This time, the victim... err... pupil is Asakura Manami, a shy, quiet girl who lives together with her mother. Hitosuji is supposed to make Manami a better student - but instead he chooses to participate in S&M relationship between mother and daughter...