The season is summer... That hot summer has come to the Morishita family where even a little movement makes you sweat. One day, the Morishita family's water heater suddenly breaks down. Even though it's summer, she can't spend a few days bathing in the water, so her husband advises her to rent a bath at the Nishizawa family next door. The next day, Asako immediately got permission from the owner of the Nishizawa family to rent a bath. However, at the same time, the only son of the Nishizawa family, Manabu, is heading to the bathroom to take a shower.
