Her mother, Natsumi, shares her loneliness with herself every night. One day, at the turn of the season, he caught a cold and fell asleep. As a mother, Natsumi cares for her with the greatest affection. When I am mopping my son's sweaty and hot, I stare proudly and jealously at him who grew up young and ugly. And Natsumi's son Karada who lit up with heat.