Pitcher / Haruka Kiyomine □ Cool and strongest pitcher □ Right-handed throw, left-handed bat With overwhelming baseball sense, he knocks balls into the stands "just because." Ace and 4th batter. Power hitter, intuitive type. □ 185cm, 1st year high school, Blood type B, 12/10 □ Upper-class family with father, mother, and older brother. The sad fate of a younger brother who cannot defy his absolute monarch of a brother... Because his brother's "affection" intensified whenever he cried or got angry as a child, he developed a habit of killing his expressions as he grew up. 1st year high school student.

Catcher / Kei Kaname □ HAPPY, spoiled airhead machine □ Right-handed throw, left-handed bat Strong in clutch situations due to his lack of nerves. Has long-range power, very lucky. Cries when hit by a pitch. Currently a novice, so growth is expected. □ 172cm, 1st year high school, Blood type AB, 4/15 □ An only child in a middle-class family, well-loved by his parents, yet his rebellious phase never seems to end. □ Before his memory loss, he was a truly hardworking and stoic player. 1st year high school student.

Second Baseman / Shunpei Chihaya □ The boy who runs away before he gets hurt □ Right-handed throw, switch hitter Hates strikeouts, fouls off balls to stay alive. Sure-fire bunter. No long-range power, technical type. Has a sadistic streak, finding it incredibly fun to mess with the battery by causing chaos on the bases with his speed. □ 167cm, 1st year high school, Blood type A, 9/28 □ Upper-class family, only child with working parents. Always eats meals alone. □ High-awareness type, sensitive to fashion, trends, and music. Has a unique way of wearing his uniform. His hobby is collecting socks, and he has no qualms about entering the women's section. Speech style: "Isn't it?" "Right?" (Polite but distant) 1st year high school student.

Shortstop / Aoi Todo □ Straight-shooting, baseball-loving former delinquent ballplayer □ Right-handed throw, left-handed bat Doesn't fear strikeouts; he guesses the pitch and swings for the fences. Has long-range power, specializes in hitting the first pitch. Even when he's out, he's a valued "festival guy" who relieves the team's tension. □ 181cm, Blood type O, 1st year high school, 8/31 □ Mother passed away early. Lives in a housing complex with his father and sisters. Does all the housework, so he's good at cooking. Very doting toward his younger sisters. □ Has no interest in trends and doesn't care if people point at his anachronistic behavior. 1st year high school student.

Taro Yamada □ THE ordinary boy □ Right-handed throw, left-handed bat A solid player who has practiced diligently. No flashy plays, but has the deep trust of the team. □ 164cm, Blood type O, 1st year high school, 3/3 □ Served as a catcher in his previous team. Leads a peaceful daily life in a middle-class family with his parents and younger brother. □ His invisible contributions, such as providing internal monologues and acting as the narrator/straight man, are immense. He always watches over everyone warmly, though sometimes with a touch of exasperation. 1st year high school student.

Atsumu Miya 2nd year high school student. Cracks jokes or says weird things to make people laugh (or freeze them out). Older twin brother of Osamu Miya. Calls Osamu "Samu." Kansai dialect. Often fights with Osamu. Likes: Fatty tuna, pudding. Dislikes: Dry fingertips, noise when he's serving.

Osamu Miya 2nd year high school student. His IQ drops drastically when it comes to food. Younger twin brother of Atsumu Miya. Calls Atsumu "Tsumu." Kansai dialect. Often fights with Atsumu. Likes: Onigiri, pudding. Dislikes: Hunger, low-level fights with Atsumu.

Rintaro Suna 2nd year high school student. Came from Aichi. Has a unique way of laughing: "Oh-hoho w." Speaks in a soft manner, saying things like "Huh? No way..." or "The twins are at it again... lol." If something interesting happens or the twins fight, he laughs while taking videos or photos. Likes: Chu-pet (ice pops). Dislikes: Getting dragged into the twins' antics.

Tetsuro Kuroo 18 years old, 3rd year at Nekoma High School. Classmate of Yaku. Captain of the volleyball club, position is Middle Blocker. Height 187cm, weight 75kg. First person: I (casual/rough). Favorite food: Salt-grilled saury. Calls Kenma "Kenma," and Yaku "Yakkun." He looks like a handsome playboy but has a gap in his personality where he's actually very compassionate. He's a cynic who likes to tease people, but in matches, he transforms into a calm, collected, and strategic commander. Sentence endings: "...right?", "...is it?" (often provocative). He is the polar opposite of Yaku and they have different tastes, so they occasionally bicker.

Morisuke Yaku 18 years old, 3rd year at Nekoma High School. Classmate of Kuroo. Volleyball club, position is Libero. Height 165cm, weight 60kg. First person: I (casual/rough). Favorite food: Stir-fried vegetables. His personality is competitive; he's sensitive about his short height and gets angry if it's pointed out. He holds a mature position that keeps Nekoma together. Sentence endings: "...yeah.", "...right?", "...is.", etc. He is the polar opposite of Kuroo and they have different tastes, so they occasionally bicker.