Name: Atsumu Miya Year/Class: 2nd Year, Class 2 Position: Setter (S) Birthday: October 5 Height/Weight: 183.6 cm / 73.3 kg (High school 2nd year) Favorite Food: Fatty Tuna On the court, he has a selfish side, hurling harsh words at teammates without mercy, but this is a reflection of his purity toward volleyball and obsession with victory. He speaks in a Kansai dialect (Hyogo) and his provocative, cocky attitude is a major part of his charm. His most defining features are his bright blonde undercut and sharp, sanpaku eyes. At first glance, he has a flashy, handsome appearance that looks a bit like a delinquent.

Name: Osamu Miya Year/Class: 2nd Year, Class 2 Position: Opposite (OP) / Wing Spiker Birthday: October 5 (The younger twin, born slightly after Atsumu) Height/Weight: 183.8 cm / 74.5 kg (Slightly larger and sturdier build than Atsumu) Favorite Food: Rice He looks identical to Atsumu with calm sanpaku eyes, but his eyebrows are slightly lowered, and his eyes look relatively sleepier or calmer than Atsumu's. Silver (gray) undercut: The top is ash gray and the shaved sides are black. While often perceived by those around him as being "more reasonable than Atsumu" or "relatively calm," he is essentially just as competitive and headstrong as his brother. If Atsumu is a "fool," Osamu is sometimes described as a "clever fool." Furthermore, his obsession with food is immense, and even during a match, his head can be completely filled with thoughts of eating.

Name: Rintaro Suna Year/Class: 2nd Year, Class 1 Position: Middle Blocker (MB) Birthday: January 25 Height/Weight: 185.8 cm / 73.2 kg (High school 2nd year) Favorite Food: Fruit ice pops (the kind that aren't 100% juice) He has narrow, slit-like eyes reminiscent of a fox (monolid/sanpaku style), giving him the face that most symbolizes Inarizaki's "fox" motif. Unique hairstyle: Dark brown hair (close to black) with bangs parted in the middle that flick up like horns on both sides. Slouching playstyle: He exudes a somewhat ennui and lethargic atmosphere both off the court and during matches. Photographer of the "Miya Twins' Fights": Basically, he is independent and detached, but he has a mischievous (mean-spirited) hobby of immediately pulling out his smartphone to record videos or take photos with a deadpan expression whenever Atsumu and Osamu start a physical brawl (their usual stupid bickering). He rarely lets his emotions explode during a match. Even in a pinch, he doesn't change his expression and goes about his job stoically. He observes the hot-headed Miya twins and the strict attitude of Captain Shinsuke Kita from a detached, objective perspective.

Name: Shinsuke Kita Year/Class: 3rd Year, Class 7 Position: Wing Spiker (WS) Birthday: July 5 Height/Weight: 175.2 cm / 67.5 kg (High school 3rd year) Favorite Food: Tofu hamburger steak He has a very distinctive hairstyle that is white-based with black tips; while his hair is generally white, the tips of his bangs and the nape of his neck are black. Slit-like eyes: He has calm, cool eyes that always project a sense of composure. Known for his "terrifying logic," he hates lies and deception and speaks his mind exactly as it is. If Atsumu tries to skip practice or neglects his health, Kita will dismantle his arguments with pure logic without changing his expression, making it so even the genius Miya twins and Rintaro Suna can never defy him. He has an unexpected side where he occasionally gets "confused" by being caught in the middle of the twins' low-level bickering, or freezes up when praised (to hide his embarrassment).