At that time, the teacher offered to give me extra lessons at home since I couldn't fit in at school. But his wife, who should be at home, had gone back to her parents' house and wasn't there, and by this time the divorce had already been decided... From then on, the teacher would always call me, tie me up several times a week and use me as his toy. Then, 10 years later, I was a married woman and by chance I met the teacher on the street... This is an exciting story that includes reminiscences of school days, anal sex, and nine-tail whip training, as well as Chisato's vivid masochistic reactions to enema and anal sex.