Shō Ashikawa operates as Robo Master for Submarine Robo in the Yellow Gears rescue team, specializing in critical sea and underwater operations. His unparalleled swimming prowess makes him the strongest swimmer across all Machine Robo Rescue members. Born on July 20 in Ehime Prefecture, Shō is 10 years old with blood type AB. He forges a comedic partnership with teammate Ken Minami, the duo becoming known as MRR's "laughing group." Together, they deliberately employ humor and optimism to ease distress during tense rescue missions. This strategy springs from Shō's unwavering belief that "Laughter can Save the World," using positivity to calm victims and bolster team morale. After his active rescue service, Shō dedicates himself to training the organization's next generation of recruits as a volunteer instructor.