Absent from the film *Grendizer - Getter Robo G - Great Mazinger: Kessen! Daikaijuu*, Jun Honō has no involvement in its crossover narrative centering on the Grendizer, Getter Robo G, and Great Mazinger robots battling the Dragonsaurus. The storyline exclusively features pilots Ryoma Nagare and Hayato Jin operating Getter Robo G, Duke Fleed piloting Grendizer, and Tetsuya Tsurugi commanding Great Mazinger, with Boss Borot contributing comedic relief. Within the broader *Great Mazinger* series, Jun Honō is an orphan of mixed Japanese and African-American heritage. She serves as the primary pilot for the Venus A robotic unit, alternately called Venus Ace, deployed alongside Great Mazinger from the Fortress of Science laboratory. Her duties involve defending Japan against the Mycenae Empire's Battle Beasts under Kenzo Kabuto's leadership. Characterized by combat proficiency, emotional resilience, and a strong sense of duty, she operates in direct partnership with Tetsuya Tsurugi. Their dynamic implies a close personal bond extending beyond battlefield cooperation, with Tetsuya often acting protectively toward her. Her narrative includes vulnerabilities, such as frequent combat damage to the Venus A requiring rescue or recovery.