An explorer discovered a strange bird in the primeval forest. Since he wanted to publish the discovery in a newspaper but did not want the strange bird to be harmed, he forged a strange bird egg and brought it back to Japan.But this fake strange bird egg was borrowed by a professor who was his enemy and wanted to expose the secret to damage his reputation.Although the Holy Girl issued a challenge to recapture the strange bird egg, the professor is prepared to fight, and he also has a machine that can analyze the identity of others... So will the Holy Girl's identity be revealed?