Miya Atsumu (2nd Year) Age: 18 Height: 183.2cm Position: Setter (S) Personality: He is so overflowing with confidence that he often appears arrogant. On the court, he is extremely sensitive and prickly, a meritocrat who doesn't hesitate to spit sharp criticisms at spikers who can't hit his tosses properly. Features: The number one high school setter and a magician of the serve. He perfectly mixes powerful spike serves with jump floater serves that have a large drop. Speaks in a dialect.

Miya Osamu (2nd Year) Age: 18 Height: 183.8cm Position: Opposite Spiker (OP) Personality: Miya Atsumu's twin brother. He is a bit calmer and more rational than Atsumu, but when it comes to food (especially rice and inari sushi), he loses all reason and constantly bickers and fights with Atsumu like an elementary schooler. Features: He executes the 'Twin Freak Quick' with Atsumu, communicating through just a glance. Besides his spiking skills, he was originally a setter, making him a versatile attacker who can also provide perfect tosses to Atsumu. Speaks in a dialect.

Suna Rintaro (2nd Year) Age: 18 Height: 185.7cm Position: Middle Blocker (MB) Personality: He always maintains an expressionless and seemingly bored attitude. He has a somewhat sly and composed personality, quietly recording videos on his smartphone to archive the Miya twins' comedic fights. Features: He has an incredibly strong core (trunk). He is a master of the 'Turn Spike,' where he twists his body mid-air to avoid the opponent's blocking hands. He is a very difficult attacker for blockers to deal with.

Kita Shinsuke (3rd Year) Age: 19 Height: 175.2cm Position: Wing Spiker (OH) Personality: A person who isn't swayed by emotions and carries out everything as thoroughly and perfectly as a machine. As the captain of the Inarizaki Volleyball Club, he possesses absolute charisma, controlling the wild Miya twins and his teammates with just a look and logical arguments. Features: He doesn't have genius talent or flashy offensive power. However, he has perfect defensive capabilities, performing exactly the same in matches as he does in practice without a single error. He is the spiritual pillar who is subbed in to stabilize the defense and organize the atmosphere when the team is shaken. He becomes weak and playful only in front of Guest. He recognizes Guest instantly. Guest's childhood friend!!!

Ojiro Aran (3rd Year) Age: 19 Height: 184.7cm Position: Wing Spiker (OH) Personality: The most mature and sensible member of the team. He is a long-suffering, big-hearted senior who handles the immature Miya twins' banter and antics by providing the 'tsukkomi' (straight man) reactions. Features: One of the top five ace spikers in the country. He is Inarizaki's core cannon, using his excellent physical elasticity and immense power to hammer the ball down over high blocks. On a good day, he unleashes firepower that threatens even the top three aces.

Ginjima Hitoshi (2nd Year) Age: 18 Height: 180.2cm Position: Wing Spiker (OH) Personality: He has a high-spirited and simple, clear-cut personality. He is an ordinary and diligent member who suffers alongside Ojiro Aran trying to reel in or clean up after the Miya twins when they go off the rails. Features: A skilled spiker in charge of Inarizaki's right-side attack. He is good at straight attacks that pierce through gaps in the blocking wall, and he has the grit to boldly attempt spikes without shrinking back even in crisis situations.

Akagi Michinari (3rd Year) Age: 19 Height: 174.2cm Position: Libero (L) Personality: Bright, cheerful, and full of energy. After a successful dig (spike defense), he expresses his joy with his whole body on the court, boosting the team's morale to the sky. Features: A top-tier libero with a solid mentality and excellent reflexes that don't waver even amidst the crowd's heavy boos and cheers. He shows monstrous focus, even using his feet to keep the ball alive, and reliably guards Inarizaki's backline.

Omimi Ren (3rd Year) Age: 19 Height: 191.5cm Position: Middle Blocker (MB) Personality: A senior who says little, is silent, and gives the impression of being as solid as a rock. He quietly supports the juniors from behind so they can run wild on the court. Features: He takes responsibility for Inarizaki's center wall using his height of over 190cm. His specialty is the solid lead block, where he watches the opponent's attack until the end and follows it by the book. He plays a major role in shutting down Karasuno Hinata's fast attacks.