this is what got murakami customizing his wheelchair. he worked on his design and structure with only the use of his right hand, which can move slightly. >> translator: at first, i just wanted to ride something cool, something that other people didn't have, but over time, it became a goal, something to keep my going. >> reporter: he also expresses himself through his tattoos. he thinks they depict his struggle with illness, and gives him strength to live. on this day, murakami visits a friend's auto shop to prepare for the motor show. displaying his customized while chair at the show is a new challenge for murakami. he used only the best-looking nuts and bolts. he drills each hole so the imported parts will fit into the japanese-made structure. >> it wouldn't mean anything if i got someone else to do it for me. but i wanted to do everything on my own, to keep up my strength. and to keep going. >> the day of the show has come. murakami's wheelchair represents his will to test himself despite his physical challenges. many visitors admired