The dramatized tale of the 1935 creation of Japan's first superhero, the "Golden Bat", alongside the changes during and after the Second World War, not just to the hero himself, but the art of "kamishibai" picture stories that he originated from.

Manga artist Gengo Odaka lands a job with the World Children's Land amusement park only to become suspicious of the organization when a garbled message is discovered on tapes. As Gengo and his team investigate, Godzilla and Anguirus quickly decipher the message and begin their own plan of action.