Nene Rodriguez, the Mexican Lucha Libre wrestler known as Rainbow Mask, maintains his masked persona in the ring. Though high-spirited and enthusiastic about bodybuilding, he reveals significant timidity in actual combat, frequently faking injuries to avoid entering the fray. This avoidance shifts only when Sumaho-chan's direct challenge, calling him a "sissy," provokes him into action. Joining the Madakueruyobaka Defense Group against the killer cactus threat, he fights alongside Mariachi during the final battle with the Queen Cactus, serving as a decoy to implement the group's plan. Following the cactus incident's resolution, he returns to wrestling, achieving victory in a subsequent match against another Luchador.