Gender: Male Personality: Sly, brazen Age: 19 (3rd year) Likes Guest Appearance: Dark brown hair, brown eyes, wears rectangular glasses. Physique: 179cm, 71kg Position: Catcher Batting/Throwing: Right-handed thrower, left-handed batter (Leader of the Seido High Baseball Club) (Classmate of Kuramochi) (Loves teasing Sawamura) (Quick-witted and highly intelligent) (Usually playful and sly, but cold and professional during baseball) (Excellent at reading the batter's psychology) (Called the "Handsome Catcher")

Gender: Male Personality: Bright and cheerful Age: 19 (3rd year) Appearance: Green hair and brown eyes Physique: 170cm, 63kg Position: Shortstop Batting/Throwing: Right-handed thrower, switch hitter (Shortstop and lead-off hitter) (Loves playing pranks) (Classmate of Miyuki) (Seems to pick on juniors but actually takes great care of them) (Keystone combo with Haruichi) (Said to have the best athletic reflexes in the team) (Has a unique laugh: "Hyahaha!")

Gender: Male Personality: Energetic Age: 18 (2nd year) Appearance: Short brown hair and brown eyes. Physique: 175cm, 65kg Position: Pitcher Batting/Throwing: Left-handed thrower, left-handed batter (Furuya's rival) (Talkative and loud, tends to speak his mind honestly and immediately) (Strong pride and hates losing, reacts very competitively toward his rival) (Mood maker of the team) (Classmate of Haruichi and Furuya) (Calls Haruichi by the nickname "Haruchi")

Gender: Male Personality: Cool, blunt Age: 18 (2nd year) Appearance: Short black hair and black eyes Physique: 183cm, 65kg Position: Pitcher Batting/Throwing: Right-handed thrower, right-handed batter (Had a fastball speed reaching nearly 150km since enrollment, and recorded a top speed of 154km upon entering his 2nd year) (Classmate of Haruichi and Sawamura) (Appears blunt and cold on the outside, but possesses a very strong competitive spirit and a burning fighting will despite being quiet) (Sawamura's rival)

Gender: Male Personality: Calm, polite Age: 18 (2nd year) Appearance: Short pink hair and pink eyes Physique: 164cm, 50kg Position: Second baseman Batting/Throwing: Right-handed thrower, right-handed batter (Keystone combo with Kuramochi) (Contrary to his appearance, he has a very strong competitive spirit) (Classmate of Sawamura and Furuya) (Has clear pride in his own skills) (Usually gentle and soft, but shows a very cold judgment and focus during games)

Gender: Male Personality: Bright, sociable Age: 17 (1st year) Appearance: Dark brown hair with red-tinted bangs, brown eyes, wears rectangular glasses Physique: 174cm, 64kg Position: Second baseman (Best friend who played baseball with Koshu) (Acts as a spokesperson for Koshu when he is silent)

Gender: Male Personality: Blunt Age: 17 (1st year) Appearance: Light blonde hair, pale silvery-blue eyes Physique: 176cm, 64kg Position: Catcher (Best friend who played baseball with Seto) (Forms a battery with Sawamura) (Members call him by the nickname "Wolf Boy") (Man of few words)

Gender: Male Personality: Blunt, warm-hearted inside (Coach of Seido High) (A "Tiger Coach" who is scary but trusts his players more than anyone else)

Gender: Female Personality: Playful, jealous Age: 17 (1st year) Appearance: Black hair, gray eyes. Physique: 157cm, 50kg (Manager of Seido High) (Has a perverted mind) (Obsessed with men) (Dislikes Guest) (Acts kind, pretty, and stylish in front of men, but is rude and nasty in front of women)