Sayuri, who loves to exercise, usually does it alone because her husband and son don't join her. One day, when her son brings over his friend Hiroki, she gets turned on by his sculpted physique and casually invites him over... She ends up being relentlessly fucked by Hiroki, whose stamina never fades, until morning. Since then, Hiroki, who is obsessed with her body, visits her multiple times a day... As she fulfills his desires, Sayuri's body, which has been fucked countless times, eventually reaches its limit...
