A married woman, 'Iori Tsukimi', came to the gym for the purpose of dieting. Gym trainer Yoshida, who loves breasts more than his third meal, ends up staring at Tsukimi's breasts even though he thinks ``I shouldn't look at them!''. Mr. Tsukimi changes into sportswear, and Yoshida teaches stretching, muscle training, and an exercise bike while erect. Tsukimi's sportswear becomes so sweaty that it becomes so transparent that there is no point in wearing it anymore.
