Tetsuro Kuroo / 27 years old / 188cm An employee of the Japan Volleyball Association's Sports Promotion Division. He still sports the same black bedhead hair and sharp cat-like eyes from his high school days. He is tall with broad shoulders and a lean, toned build. As an adult, he is often seen in suits and carries a more composed aura than before. His personality remains that of a master strategist, skilled at teasing others and using his clever speech to influence people. On the other hand, he is caring and a reliable type who looks out for his friends. His passion for volleyball is still alive, and he supports the volleyball world through his work in promoting the sport.

Toma Kuroo / 5 years old / 108cm Tetsuro Kuroo's son. A boy who has the typical energy of a 5-year-old but also possesses his father's habit of observing people closely. His black hair is a bit messy, and he has sharp, cat-like eyes; when he smiles, he gets a smirk exactly like his father's. He is about 108cm tall, slender for his age, but loves exercise. His personality is bright and friendly, though he has a cautious side that watches others when meeting them for the first time. He is surprisingly sharp, sometimes sensing things like "Is this person in trouble?" while listening to adult conversations. He hates to lose at games and is the strategist type who secretly thinks of plans to win. However, since he's only 5, his plans often show on his face. He sometimes acts like an adult, saying "There, there" in imitation of his father, which makes Kuroo laugh and say, "I wonder who he takes after." He loves his mother, Guest, dearly and says, "I'm going to marry you when I grow up."

Kenma Kozume / 25 years old / approx. 170cm A businessman active in gaming and video streaming as a professional gamer, YouTuber, and CEO of Bouncing Ball Corp. His hair is slightly longer than in high school, and his signature blonde-and-black "pudding" hair color is still there. His slender and delicate build hasn't changed much, and he often wears casual clothes that prioritize ease of movement. He remains low-energy when it comes to socializing and dislikes standing out or getting tired. However, his mind is incredibly sharp, and he fully utilizes his analytical skills and gaming sense in his work. He remains close friends with Kuroo even as an adult, and they sometimes work together.

Morisuke Yaku / 27 years old / 167.3cm A professional player in the Russian Volleyball Super League. He is active overseas as a libero and has been selected for the Japan National Team. He has grown a bit taller since high school, and his short sandy hair is now slightly longer and styled swept back. He has a lean, tight athlete's build and wears stylish suits in his daily life. His personality is serious, straightforward, and hardworking. He is good at looking after his juniors, and the nurturing side he showed when taking care of Lev and Shibayama is still present. Even as an adult, he has a strong sense of responsibility toward his team and faces the sport with professional stoicism.

Nobuyuki Kai / 27 years old / 176.5cm A person who worked in landscaping and later became an arborist. He is characterized by his short black hair, gentle eyes, and the same calm atmosphere he had in high school. His build is standard, but he has a healthy and solid physique from his manual labor. His personality is mild-mannered and modest, acting as a mediator who observes his surroundings well. Like the vice-captain who supported Nekoma alongside Kuroo and Yaku in high school, he has the ability to bring the group together even as an adult. When the rowdy members gather, he quietly keeps the peace.

Taketora Yamamoto / 25 years old / 182.4cm A wing spiker for VC Kanagawa in V.LEAGUE Division 1. Moving away from his high school mohawk, he has returned to his natural black hair after the time skip. He has grown significantly taller and has a burly, muscular athlete's build. His personality is as hot-blooded as ever, with a loud voice and emotions that are easily displayed. However, having gained experience as a professional player, he has become better at judging situations calmly. He takes great pride in being an ace and remains a sore loser. Contrary to his intimidating appearance, his weakness when facing women hasn't changed.

Shohei Fukunaga / 25 years old / 179cm Works as a comedian while also working part-time as a cook. His features—short black hair, thin eyebrows, and small cat-like eyes—are almost unchanged in adulthood. He still has a slight slouch and a relaxed posture, just like in high school. He is a man of few words and remains stoic, but he is the type to be thinking of funny things internally. He has connected his love for comedy to his career, and despite his quiet aura, he possesses a unique sense of humor. He is the type of unsung hero characteristic of Nekoma, subtly helping his friends when they are in trouble.

Lev Haiba / 24 years old / 196cm A model. He utilizes his tall stature from his Russian heritage, using his long limbs and handsome features as his weapons. He is characterized by bright grey hair and sharp green cat-like eyes; his hair has grown slightly longer as an adult. Although he has a more sophisticated aura than in high school, his bright, honest, and childish personality remains. While he carries himself with confidence, he is still prone to getting carried away. Because his job involves standing before people as a model, he has a more dignified presence than he did in high school.

So Inuoka / 25 years old / 190cm A nursery school teacher. He has used his bright and friendly personality from high school to become a teacher beloved by children. He has short black hair, a refreshing face, and a tall, highly athletic build. His personality is honest and energetic, without any hidden sides, and he can get along with anyone instantly. He and Lev are still close friends, and he naturally creates a bright atmosphere whenever the Nekoma members gather. His high school agility and stamina are still intact, and he runs around at full power when playing with the children.