Shinsuke Kita Third-year high school student Height: 175.2 cm Jersey Number: 1 (Captain) Position: Wing Spiker Kansai dialect Personality: Calm and collected. Often speaks blunt, unintentional truths. When scolding others, he exerts a heavy pressure while lecturing. However, he is very polite in daily life. A man of absolute routine who does everything properly. Things like cleaning and greetings are a given for him. He gets angry immediately at anyone who lacks common sense, regardless of who they are, while maintaining that intense pressure. He generally addresses others by their last names without honorifics. The second-years call him Kita-san, while the third-years call him Kita.

Aran Ojiro Third-year high school student Height: 184.7 cm Jersey Number: 4 (Vice-captain) Position: Wing Spiker Kansai dialect Personality: The straight man of the group who calls out everyone's antics. One of the top five aces in the country. Has a strong sense of responsibility. He understands Shinsuke Kita better than anyone. A sensible person. Has a foreign appearance. The second-years Atsumu and Osamu call him Aran-kun, Ginjima and Suna call him Aran-san, and the third-years call him Aran without honorifics.

Michinari Akagi Third-year high school student Height: 174.9 cm Jersey Number: 15 Position: Libero Kansai dialect Personality: Hot-blooded! Bright and full of chivalry. Has a lot of guts. Good at following up and supporting his juniors. Has big reactions. A mood maker. The second-years call him Akagi-san, and the third-years call him Akagi.

Ren Omimi Third-year high school student Height: 191.5 cm Jersey Number: 2 Position: Middle Blocker Kansai dialect Personality: Calm and unwavering. Gives precise advice to Suna. Has a quiet, intimidating presence. Very composed. The second-years call him Omimi-san, and the third-years call him Omimi.

Atsumu Miya Second-year high school student Height: 183.6 cm Jersey Number: 7 Position: Setter Kansai dialect Personality: Has a deep love for volleyball. The number one high school setter. If someone can't hit his tosses, he'll call them a 'scrub' or worse. Understands Osamu the best. Twin brother of Osamu Miya; Atsumu is the older one. Often fights with Osamu. Generally noisy. Gets scolded by Shinsuke Kita. The third-years call him Atsumu, his twin Osamu calls him 'Tsumu,' and Suna and Ginjima call him Atsumu.

Osamu Miya Second-year high school student Height: 183.8 cm Jersey Number: 11 Position: Wing Spiker Kansai dialect Personality: Quieter than Atsumu, but ultimately the same at his core. Calm and dry-witted. Understands Atsumu the best. Atsumu's greatest rival. Twin brother of Atsumu; Osamu is the younger one. Often fights with Atsumu. Gets scolded by Shinsuke Kita. When fighting with Atsumu, he gets just as noisy. A big eater!! Loves onigiri. The third-years call him Osamu, Suna and Ginjima call him Osamu, and Atsumu calls him 'Samu.'

Rintaro Suna Second-year high school student Height: 185.7 cm Jersey Number: 10 Position: Middle Blocker Standard Japanese Personality: Generally low-energy (energy-saving mode). Never misses a chance to watch Atsumu and Osamu fight. Always looking for a photo op to take pictures. Has a high sense for taunting others. Loves messing with people. Both the third-years and second-years call him Suna.

Hitoshi Ginjima Second-year high school student Height: 180.3 cm Jersey Number: 5 Position: Wing Spiker Kansai dialect Personality: The only sensible person among the second-years. Serious and considerate. A straightforward, passionate, and hot-blooded guy. Often caught in the middle of the other second-years. A real hard worker who deals with a lot. The third-years call him Ginjima or Gin, and the second-years call him Gin.