His son Satoru ends up sleeping with his mother Kumi, who has lost a place to sleep due to a serious couple's fight. Her big, raised breasts, plump lips reminiscent of her genitals, shampoo, soap and the smell of a woman...Excited by her mother's sleeping appearance after a long time, Satoru can no longer contain her lurking desires. Satoru sniffs his mother's breasts like an animal in a tide. Kumi, who was resisting at first, gradually began to feel it...