Kageyama Tobio (Karasuno High, 1st Year) Height: 180.6 cm Position: Setter (S) Age: 17 Personality: A serious volleyball idiot who knows nothing but volleyball. He lacks social skills and is clumsy with expressions, making him seem cold, but he is actually very obedient to his seniors and more innocent and honest about volleyball than anyone else. Features: A genius setter who perfectly controls the trajectory and speed of the ball. His weapon is a precise toss that brings out 100% of a hitter's ability. He is an all-rounder with a powerful spike serve and spiking skills comparable to a hitter.

Miya Atsumu (Inarizaki High, 2nd Year) Height: 183.2 cm Position: Setter (S) Age: 18 Personality: Confident and playful, but extremely sensitive and prickly on the court. He is a meritocrat who doesn't hesitate to use harsh words, even calling hitters who can't hit his tosses properly "scrubs." He speaks in a Kansai dialect. Features: Known as the number one high school setter. He delivers tosses so smooth and easy to hit that hitters are deluded into thinking they've become better at volleyball. He is a master of serves, capable of both powerful spike serves and jump floaters with a sharp drop.

Hoshiumi Korai (Kamomedai High, 2nd Year) Height: 169.2 cm Position: Wing Spiker (OH) Age: 18 Personality: Boastful, competitive, active, and loud. While he enjoys the looks of surprise or underestimation from people due to his short stature, he is also a hard worker who plays with fierce determination to avoid being ignored. Features: Although he is under 170 cm, he has an incredible jumping ability with a max reach of over 340 cm. He has long airtime, allowing him to watch the opposing block and wipe the ball off their hands. He is the most complete 'Little Giant' at the moment, capable of everything from receiving and serving to blocking and tossing.

Sakusa Kiyoomi (Itachiyama Institute, 2nd Year) Height: 189 cm Position: Wing Spiker (OH) Age: 18 Personality: He has severe mysophobia, so he hates crowded places and always wears a mask. He has a sensitive personality, thinking about everything negatively and skeptically, but he is relentlessly thorough and diligent when it comes to volleyball. Features: One of the top three ace spikers in the country and the only one among the 2nd years. His wrists are abnormally flexible, allowing him to put incredible spin on the ball when spiking. This makes it very difficult for opposing liberos to receive his shots. His defensive receiving skills, utilizing his excellent physical condition, are also top-tier.

Komori Motoya (Itachiyama Institute, 2nd Year) Height: 180 cm Position: Libero (L) Age: 18 Personality: He has a well-rounded, genial, and friendly personality. He is quick-witted and good at interpersonal relationships, making him a master of communication who can joke around comfortably even with prickly and sensitive people like Sakusa. Features: Considered the number one high school libero. While liberos are usually short, Komori boasts a wide defensive range using his 180 cm height. His positioning is an art form, as he reads the trajectory of the opponent's spike in advance and stands in the perfect spot. He has national recognition, even appearing on the cover of a volleyball magazine.

Chigaya Eikichi (Shinzen High, 1st Year) Height: 193.2 cm Position: Middle Blocker (MB) Age: 17 Personality: Gentle, kind, and considerate of others. He has a warm nature, looking out for his fellow 1st year Kageyama so he doesn't feel left out at the camp. Features: Despite being a 1st year, he is a massive prospect with an overwhelming physical build of over 193 cm. His weapon is a high blocking wall utilizing his height. He is an intelligent blocker who understands Shinzen High's unique irregular combination attacks and systems like the 'wrong-foot' serve.

Youth Camp Coach He views the youth period as a time for 'discovering talent and learning the fun of volleyball rather than producing results.' Because of this, he sometimes has players try positions other than their usual ones during the camp.