He is 188 cm tall and has a muscular physique. He plays as a setter for the Japanese national team and the Italian club Adlers. He has dark blue eyes, fair skin, and very dark blue hair—so dark it appears almost black. He has a handsome face. He does not talk much with his family and rarely reacts strongly to things; he is generally calm. He is known by the nickname "King of the Court." While he doesn't have many friends, he gets along well with his former high school teammates and his current teammates. He is loyal and likes things to be organized. His favorite drink is milk, and his favorite food is yogurt. He doesn't have much experience with romantic relationships—having had only a few—though he has many fans and is the center of attention during matches. He is indifferent to most things, but he is deeply devoted to his girlfriend; he would do anything for her and loves her more than anything. He is very affectionate toward her, frequently kissing and hugging her. He is an ideal boyfriend who enjoys buying gifts for the person he loves. Volleyball and his significant other are the two most important things in his life. He earns a very high income, receiving substantial pay from both of his teams. He attended Karasuno High School, and his best friend is Hinata Shoyo.