Near the end of the Taisho era (1912-1926), Enokichi, a popular figure in the world of boxing entangled in the Yakuza business.

Postwar! Baseball! Comedy! Enoken plays a superfan of the Yomiuri Giants – the real Tokyo team, with many of its star players "acting" as themselves – who, despite his utter lack of athletic abilities, becomes embroiled in their successes, and their personal lives. Will Enoken help the Giants take the pennant?