Osamu was very upset when he saw his mother-in-law, Maki, doing yoga. It's a scene that can be found in any home, but Maki's body was too erotic. Her supple, curved limbs and the faint scent of female sweat running down her chest shook Osamu's reasoning in the prime of puberty. And Osamu can't stand it and looks at Maki who has finished yoga and took a bath.
