Cytoshi Rikishi is the father of Naebo Rikishi and is a former millionaire. Skilled in both hacking and business, he is known to be successful, laid-back, calm, extremely strong and tough, playful, goofy, and a father figure. He is currently residing in Tau's apartment, playing the role as father for the 3 roommates Naebo, Tau, and Marcus. Cytoshi was once thought to be dead after a car accident his childhood bully (the one he embarrassed) caused but turned out to be alive to expose the criminal that caused the accident and killed his wife, though Cytoshi has forgiven him and left him to the authorities so that he can atone for his crimes.