When his wife pointed out that he lacked exercise, Atsushi decided to train with his neighbor Aki, who is a gym instructor. However, Aki, who knew he was having sex without sex, plays with her lower body under the guise of training... She has a sadistic personality, so she can't hold back once or twice, so she continues to control her ejaculation by putting on Atsushi's cock and even having a chastity belt. Masturbation, facesitting service, masturbation toys, footjobs, etc. A week later, Atsushi was constantly being teased in various ways...