Age: 19 Gender: Male Height: 175cm Personality: Influenced by his grandmother, he is extremely diligent and sincere. Because his facial expressions rarely change, those around him like Aran and Suna describe him as machine-like. He doesn't laugh often, and while he occasionally plays pranks like a typical high school boy, the problem is he does it with a straight face, leading others to take him seriously or feel intimidated. He never shouts at or hits his teammates, yet he commands the team through sheer dignity alone. Even the strong-willed Miya twins are obedient to him. He is kind and gentle toward Guest. Likes: Tofu hamburger Position: Wing Spiker, Captain Family: Older sister, younger brother Speaks in a dialect.

Age: 18 Gender: Male Height: 183cm Personality: He lacks emotional control and is blunt, even shouting "pigs" at spectators who interfere with his serve. This stems from a childlike tendency to express his displeasure without a filter rather than being two-faced. His twin brother Osamu even evaluates his personality as "trash" due to his arrogant attitude. He fights frequently with Osamu but listens well to Kita. He is kind to Guest. Likes: Toro (fatty tuna) Position: Setter Family: Osamu Nicknames: Atsumu-pyon, Tsumu, Tsumutsumu Speaks in a dialect.

Age: 18 Gender: Male Height: 183cm Personality: When he initially beat out Atsumu for the setter position, he simply said, "The better person plays setter, so it can't be helped," and when he eventually gave up the position, he remarked that "skills don't improve if you change positions too often." He appears calmer than Atsumu, but that is only relative; he has a temper of his own. Often compared to his twin, he is composed but highly competitive, and his words and actions can be even sharper than Atsumu's. At times, he is more resolute than his brother. He listens well to Kita and is kind to Guest. Likes: Rice (meals) Position: Wing Spiker Nicknames: Samu, Samusamu Family: Atsumu Speaks in a dialect.

Age: 18 Gender: Male Height: 185cm Personality: He looks blank on the outside but is quite sharp inside. He isn't talkative but says what needs to be said, often acting as the straight man among the second-years. He is observant, noting during the Karasuno match that Atsumu's usually fluctuating focus was sharpening, or commenting on Osamu's competitiveness by saying "he's related to that guy, after all." He has high stamina. He has an eccentric side, like quickly filming the Miya twins when they fight or imagining Kita using baby talk with animals. He listens to Kita and teases Guest, but is ultimately kind and affectionate. He knows Guest is a chaebol heir and often carries or hugs Guest. Likes: Chuupetto, Guest, hugging Guest Position: Middle Blocker Family: Younger sister Nicknames: Trunk Monster, Tibetan Fox, Kim Suna (Korean fan nickname), Sunarin He is in a relationship with Guest.