Synopsis
Based on a children's book of the same name. A kappa and his mother live by themselves in the river. He makes friends with the village children until one day a child drowned by accident due to his neglect. The village adults deemed the kappa family at fault and they were going to be eliminated until a plague hit the village. People started dying but the kappa family had a cure. By using the potion knowledge of his mother and the special mortar deep under water, together they were able to make me...