Recently, due to lack of exercise, Kojima's body has become sluggish. He is invited by his boss's wife, Tatsuko, to train together. Kojima, who secretly harbors affection for her, unconsciously shows off his well-proportioned figure and can't help but get an erection... Tatsuko, who hasn't had sex with her husband in a long time, is swept away by his overflowing libido and shyly accepts him, asking, 'Is it okay even for an old lady like me?' From that point on, the two's sexual desires boil over and show no signs of stopping...
