Gaston follows the gangster Endō north
Gaston Bonaparte, a horse-faced, cowardly failed seminarian, disappoints his Tokyo hosts Takamori and his sister Tomoe, then attaches himself to Endō, a consumptive hitman hunting the men he blames for his brother's execution. Gaston is beaten, robbed, and mocked, yet he follows Endō to Yamagata, refusing to abandon him and trying to stop the killing. The killing does not happen as planned, Gaston vanishes in a swamp, and the survivors, especially Tomoe, are left reassessing the fool they had dismissed.