While waiting for her husband to go to work, Yukari and her son, Kenta, live a life that cannot be called wealthy, but she is feeling happy. - As I was wiping my sweat and having a casual conversation with Kenta, the air conditioner in my room suddenly broke. - Unable to find the money to repair it, Yukari tries to survive the heat by expanding the pool Kenta used to play in as a child into the garden. - Yukari feels a moment of coolness as the mother and child play in the water without entering the water, but Kenta can't take his eyes off the mother's huge breasts, which are wet and transparent.