Hyōdo appears as a character entry for "Naniwa Kin'yū Den Minami no Teiō" under the spelling Hyoudou (兵頭), though the entry explicitly states "No biography written." This absence of documentation extends to any details about Hyōdo's background, narrative development, or role within official media releases. References to similarly named characters like Kazutaka Hyōdō from "Kaiji" or Juza Hyodo from "A3!"—alongside real individuals—remain unrelated. Descriptions of the series and its adaptations likewise contain no character-specific information about Hyōdo.