Toichi is a boatman who ferries the villagers to a town on the other side of the river. Besides rowing a boat for the villagers all day long, he barely communicates with anyone except Genzo, a young neighbour. Upstream, a large bridge is being constructed. Everyone is excited, but Toichi has mixed feelings about it. One day, Toichi meets a mysterious girl. Having no family and no place to go, Toichi lets her stay with him, but this encounter starts to bring about changes to Toichi's life.