Mizuki sensei, the swimming club advisor, was beautiful and had an outstanding figure, and I admired her. The swimming club was small and had few members, so I was close to the advisor and looked forward to practice. But then it was decided that the swimming club would be disbanded. Mizuki sensei gently comforted me, who was shocked and depressed, and helped me lose my virginity, but it didn't go well and became a bitter memory... After that, I had sex a lot, honed my technique, and became able to make any woman cum. Yes, in preparation for my reunion with her...