Nakamura is the custodian of Seaford High School as seen in Fat Chance. He saved Milton from falling off a ledge and Milton sees him as his guardian angel. He used to be a sumo-wrestling champion and even has a victory dance called The Nakamura Stomp. He retired from sumo-wrestling when a rookie named Yamazaki beat him in a sumo match, but with the help of Milton and the Wasabi Warriors he was able to get back into sumo-wrestling, go to Japan and retire from his custodian job. It is also mentioned he went to a game show called Are You Willing to Lose Your Life Savings and lost all of his life savings because of that, even worsening his failed sumo career.