Shunsaku Iwakiri works for the city’s water department and his job is to visit homes and stores that are behind on their bills and either collect the money or shut off the water supply. Shunsaku is separated from his wife and children, and his heart grows thirsty as he spends his days visiting poor households and being abhorred. One day, during a water shutoff, Shunsaku meets two young sisters who have been neglected. He sees them as his own children and offers them a helping hand.