When Sayuki was a female college student, she was attracted to Sawada, an elderly university professor, and got married while she was still in school. Sayuki's newlywed life began with accepting her husband's metamorphic habits. A few years later, Sawada realized that his male function had declined significantly, and he came up with new fun and put it into practice. Anyway, it was to have Sagawa, an assistant who had rumors of unequaledness, make a partner with his wife Sayuki as a mid-order. Sayuki, who hated at first, becomes a captive of Sagawa's rough training and big cock ...
