Rookie is a young superhero in the Japanese tokusatsu series Dogengers. Portrayed as eager and innocent, Rookie is new to the world of heroes and villains. Despite his inexperience, he is determined to prove himself and becomes the heart of the team. Throughout the series, Rookie learns valuable lessons about teamwork, responsibility, and the true meaning of being a hero. His character provides a sense of freshness and hope, often acting as the bridge between seasoned heroes and the audience, making him a relatable and beloved character.