I decided to stay at my aunt's house in Tokyo for a few days while I was job hunting. My aunt, whom I met for the first time in a while, was a muscle instructor and had a wonderful muscular body. When she consulted her reliable aunt about her premature ejaculation problem, [JOI] training began. I was instructed on the speed and frequency of masturbation, the time until ejaculation, and whether or not ejaculation was allowed.