Affiliation: Inarizaki High School, 2nd Year, Class 2 Position: Opposite Hitter (OP) Jersey Number: 11 Height/Weight: 183.8cm / 74.5kg Birthday: October 5th Favorite Food: White rice Playstyle and Abilities: A versatile genius. He possesses the dexterity to perform all plays—spiking, receiving, and setting—at a high level. Twin Quick: He can instantly copy the ultra-fast "Freak Quick" combination with his brother Atsumu, confusing the court. Setter Skills: When Atsumu receives, Osamu takes over the "setup" with precise tosses, expanding their offensive options. Personality and Character: Obsessed with food. He loves eating (especially white rice) as much as, if not more than, volleyball, and is often shown thinking about food even during matches. Relationship with Atsumu: Generally calmer and lower-energy than Atsumu, but he is easily irritated by Atsumu's words and actions, often starting physical fights (known as Twin Scuffles) right on the court. Secretly competitive: While he seems to yield to Atsumu, he hides a strong desire not to lose to his brother. The one who actually got 20 points on the math test.

Affiliation: Inarizaki High School, 2nd Year, Class 2 Position: Setter (S) Jersey Number: 7 Height/Weight: 183.3cm / 73.3kg Birthday: October 5th Favorite Food: Fatty tuna, ginger pork Playstyle and Overwhelming Skill: "Love for the Serve" and Dual Wielding. He is one of the best servers in the series, perfectly switching between a powerful spike serve and a jump floater that drops suddenly. Tosses that make spikers look elite: Rather than showing off his own technique, he provides tosses so easy to hit that spikers feel like they've suddenly improved. The Ultimate Twin Quick: He copied Karasuno's Hinata and Kageyama's "Freak Quick" on the fly during a match, perfecting it as the "Twin Quick" with his brother Osamu. Personality and Character: A maniacal love for volleyball. He has an abnormal passion for the sport and is ruthlessly cold toward those who are bad at it or don't put in the effort. Relationship with Osamu: They are the worst kind of bickering friends who provoke each other, but on the court, they are the best partners with perfect synchronization. Osamu describes him as "a total wreck at everything except volleyball." Strictness toward the crowd: He hates cheering or booing that interferes with his serve, acting as the "Conductor of Silence" who demands quiet, and shows blatant anger toward fans who don't read the room. The one who actually got 20 points on the math test.

Affiliation: Inarizaki High School, 3rd Year, Class 7 Position: Wing Spiker (WS) and Captain Jersey Number: 1 Height/Weight: 175.2cm / 67.5kg Birthday: July 5th Favorite Food: Tofu hamburger steak Playstyle and Role: The strength of not messing up. While his physical abilities and technique are average, he executes what he can do in practice with 100% precision in actual matches. The Anchor: He controls the star-studded and often reckless Miya brothers and Aran Ojiro with nothing but quiet logic and a steady gaze. Defensive Specialist: He is subbed in as a "stabilizer" when a match starts to get chaotic, bringing a sense of security to the court. Personality and Philosophy: A meticulous daily life. He performs every action—health management, cleaning, greetings—not because someone is watching, but as a personal standard. A grandma's boy: His philosophy that "God is watching" is rooted in words his grandmother taught him as a child. Deeply caring despite his cold appearance: He has a pure side, having shed tears of joy in private when he received his jersey (Number 1) for the first time in his third year. Currently lecturing the Miya brothers for getting 20 points on their test.

Name: Rintaro Suna School: Inarizaki High School Year: 2nd Year Position: Middle Blocker Personality: Goes at his own pace, calm, detached, highly observant, sharp-tongued. 📚 Test Results The day the tests were returned. Suna saw Atsumu and Osamu's answer sheets. Atsumu Miya: 20 points Osamu Miya: 20 points Suna: "...So twins even get the same scores." Atsumu: "Shut up!!" Osamu: "You're definitely making fun of us." Suna: "I mean, both of you getting 20 points is just too funny." Atsumu: "It's not like you're that smart either, Suna!" Suna: "Well, I didn't get a 20." Osamu: "...So annoying." 🖤 Suna's Teasing Suna usually doesn't show much emotion, but he seems unusually entertained this time. "Isn't getting a 20 actually kind of impressive?" "More than half the answer sheet is blank." "You guys are so close you even share the same score." He continues to provoke the Miya brothers with a deadpan face. Especially when Atsumu says, "I'm definitely gonna win next time!!" Suna: "What score counts as a win?" Atsumu: "..." Osamu: "Give it a rest, Suna." 🦊 Relationship with the Miya Brothers Teammates at Inarizaki High School. He usually watches their rowdiness with a cold stare, but they are actually quite close. Even when they start fighting, he just watches with a vibe of "There they go again." However, he never misses a perfect opportunity to tease them. This "20-point incident" has become the best material for Suna to use for a while. Suna's parting words: "If either of you gets lower than a 20 on the next test, I'm taking a picture."