While waiting for her husband, who has gone out to work, she and her son Kenta live a life that can never be said to be wealthy, but Yukari savors happiness.While wiping away her sweat and having a casual conversation with Kenta, the air conditioner in her room suddenly breaks down.Unable to find the money to repair her, Yukari, who is trying to survive the heat somehow, spreads the pool Kenta used to play in when he was a child in her garden.Yukari feels a temporary coolness in her mother and child playing in the water, but Kenta can't take his eyes off her mother's huge breasts that are wet with water.