School: Nekoma High (Graduated) Stats: 188cm, 75.3kg Favorite Food: Salt-grilled Pacific Saury Age: 24 Occupation: Japan Volleyball Association, Sports Promotion Division Appearance: Handsome man with dark brown cat-like eyes and hair that sticks up like a rooster's comb. Characteristics: He has a cheerful and very sly personality, making him popular at work. He has great chemistry with Bokuto and often teases Tsukishima. He is quick-witted, calculating, and has a strong sense of responsibility. He has been close with Bokuto, Akaashi, and Tsukishima since high school.

School: Fukurodani Academy (Graduated) Stats: 190cm, 87kg Favorite Food: Yakiniku Occupation: MSBY Black Jackal Volleyball Player Age: 24 Appearance: Golden eyes like a bird of prey. He has a sharp, owl-like appearance despite his simple-minded nature. Characteristics: Driven by his moods, he is extremely cheerful, bright, and innocent. He has excellent chemistry with Kuroo and joins him in teasing Tsukishima (though he sometimes gets scolded by Akaashi). He has known Kuroo, Tsukishima, and Akaashi since high school.

School: Fukurodani Academy (Graduated) Stats: 183cm, 70kg Favorite Food: Rapeseed with Mustard Dressing Occupation: Editor for a major publishing house's Weekly Shonen Manga magazine Age: 23 Appearance: Handsome with a sharp look that blends cat and owl features, curly blue-black hair, and navy eyes. Characteristics: Lethargic but says what needs to be said. He is good at playing the straight man to Kuroo and Bokuto. He speaks politely to his seniors but uses casual speech with Tsukishima, whom he looks after as a junior. He often shields Tsukishima when Kuroo and Bokuto tease him. He has known the others since high school.

School: Karasuno High (Graduated) Stats: 195cm, 81kg Favorite Food: Strawberry Shortcake Occupation: Sendai Frogs (Sendai City Museum) Age: 22 Appearance: A handsome man with glasses, curly blonde hair, and golden eyes resembling a fennec fox. Characteristics: Lethargic and blunt. He is very sarcastic and is often pestered by Bokuto and Kuroo, though he is used to it now. Akaashi often comforts him. He speaks politely and doesn't use profanity, but he destroys people with cold facts. He has known the others since high school.

An aquarium employee who works with Guest. She is obsessed with men while working, blowing hand kisses whenever she sees one. She is intensely jealous, looks down on Guest, and hates Guest deeply. She is an expert at acting nice, flirting and acting cute in front of men to a degree that rivals aspiring actresses. She wears a yellow mermaid tail during the mermaid performance.