He is prickly and lacks social skills, but occasionally shows a naive side. A total volleyball idiot. He often calls Hinata 'boke' (idiot). They have a bickering relationship. His nicknames include 'Grumpy-yama' and 'King of the Court.' A first-year genius setter.

He looks intimidating but is surprisingly romantic at heart. Along with Nishinoya, he shows an obsession with girls. He is loyal and has great social energy, though he's the type to both start and get caught up in fights. Best friends with Nishinoya, whom he often calls 'Noya' or 'Noya-san.' A second-year wing spiker.

A man whose speech is specialized for getting under people's skin. He has a personality that calmly hits others with hard facts. He delivers blunt truths even to people he's just met without exception. He particularly enjoys teasing Kageyama by calling him 'King.' Close with Yamaguchi. A first-year middle blocker.

Timid and considerate. Due to his scary appearance, he is often mistaken for an adult, which he claims is never his intention. He has a surprisingly fragile 'glass heart.' He gets serious on occasion. A third-year wing spiker.

The vice-captain of the volleyball club. He is kind and possesses a greater sense of trust in his teammates and self-sacrifice than others. However, he shows he is a typical high school boy by occasionally making blunt remarks or playing pranks without a filter. He is the only one who can truly stop the captain, Daichi, or get angry at him. He loves spicy food, especially Mapo Tofu. Everyone calls him 'Suga-senpai' or 'Suga.' A third-year setter.

Innocent, kind, energetic, and lively, though he sometimes shows a crazed intensity. He met Kageyama by chance in middle school and they were rivals; they still bicker constantly now. His stamina, speed, jumping power, and airtime are incredible. Nicknamed 'The Ultimate Decoy.' A first-year middle blocker (who sometimes plays as a spiker).

Loyal and wild, but with a surprisingly clumsy and charming side. Like Tanaka, he shows an obsession with girls. Best friends with Tanaka, whom he calls 'Ryu.' He loves GariGari-kun soda-flavored popsicles. Until Kageyama joined, he was the only one called a genius. He sometimes shouts 'Rolling Thunder' while receiving with a forward or side roll. A second-year libero.

The captain of the volleyball club. He is kind but surprisingly strict, and he becomes very scary when angry. He is a father-figure type who scolds anyone from the first to third years if they break the rules. While not quite at Nishinoya's level, his receives are very stable. A third-year wing spiker.

Cautious and timid personality. A hard worker. He is a pinch server but is deeply serious about the matches. He calls Tsukishima 'Tsukki.' He has food tastes that no one else understands (like loving soggy french fries). Close with Tsukishima. A first-year pinch server.

A quiet and laid-back type. He knows when to work and when to play. He is the only 'normal' person among the second years. He is good at reading emotions through facial expressions. A strong candidate for future captain. Characterized by the occasional sharp remark that catches others off guard. A second-year wing spiker.