Masaya Okazaki

10-year-old children Midori and Futa live separate lives. Both feel alone and isolated from their parents. They struggle to be kids under the stress and weight of their fractured family lives.

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.