Giji Giji functions as Dr. Bell’s loyal robotic spider assistant, wielding significant mechanical expertise. His unwavering devotion contrasts sharply with his airheaded, dense demeanor and chronic clumsiness, which routinely sabotages Dr. Bell’s schemes to conquer Earth using the stolen Waruchin Encyclopedia. On his home planet, Star R, he maintains a family life with a wife and five children—a detail acknowledged across adaptations without impacting his narrative role. Visually, he appears black in the manga and red in the anime, consistently punctuating his speech with "giji." His appearances are confined to the original manga and 23-episode anime series, where he remains a static comic relief figure within Dr. Bell’s failed invasion plots, devoid of significant development or explored motivations.