The protagonist Iwakiri Shunsaku is an employee of a water company. His job is to visit families who have not paid their water bills and then cut off their water supply. One day, when he was enforcing a water restriction order throughout the county, he met a pair of abandoned young sisters. It goes without saying how important water is to this poor family. Iwakiri began to worry about whether to cut off the water supply, but finally decided to follow the rules and cut off the water supply...