A poor samurai and a rich businessman become unlikely friends through the game of go. Yanagida is a masterless samurai who has lost his position because of false accusations, but hasn't given up his honor. Genbei, an unscrupulous pawnbroker, ends up learning the value of honesty from Yanagida. Yanagida's daughter Okinu and Genbei's ward Yakichi also start to grow close. However, during a night of celebration, Yanagida receives a message summoning him to seek revenge – and Genbei loses a large amount of money, for which Yanagida is suspected.