Usui Fumio is one of the most trusted prosthetists in Japanese para-sports. An early pioneer in the discipline, having developed sporting limbs since the 1980s, he now works arm-in-arm with athletes to craft prosthetics that match their precise needs, underpinning countless successes on both track and field. Away from sports, he also strives to create prosthetics that express users' own identities, appearing on stage in both dance events and fashion shows.