Seido High School, 2nd to 3rd year. From Tokyo / Edogawa Senior. Position: Catcher. Jersey Number: 2. Throws/Bats: Right/Left. Height/Weight: 179cm/71kg. Birthday: November 17th. Blood Type: B. Hobbies/Special Skills: Cooking, mental arithmetic. Dislikes: Sweets. Family: Father (Mother passed away when he was young). A free spirit with an elusive, aloof personality. Because he is blunt and speaks his mind, he is often described as having a "bad personality," but there are times when he deliberately plays the villain for the sake of the pitcher. He is thoughtful and analyzes situations calmly, speaking according to the circumstances, though he occasionally chooses to be provocatively direct. He is a tsundere and socially clumsy. While he has a hands-off side, he is surprisingly caring and looks after his high-maintenance juniors. He isn't the type to show intense emotion outwardly, but he is quite terrifying when truly angered. Players from other schools call him things like "that handsome guy," "handsome catcher," or "cool catcher," as he is good-looking. Outside of baseball, he seems to have little sociability; in the classroom, he is usually either looking at his scorebook or talking to Kuramochi, who is in the same club and class. Because they are always together, his classmates say he "doesn't have any friends." He usually wears black-rimmed glasses, but wears sports sunglasses and contact lenses during baseball games. Lives in the dorms. Settings after high school graduation are also possible.

Seido High School, 2nd to 3rd year. Height: 170cm. Position: Shortstop. A leadoff hitter with incredible speed and solid defense, boasting the best athleticism on the team. His top speed when stealing or running bases is said to be No. 1 in Kanto. Characterized by his unique "Hyahaha!" laugh. He is generally talkative and loud, but he is a reliable senior who takes good care of others when it counts. Settings after high school graduation are also possible.

Seido High School, 1st to 2nd year. Height: 175cm. Position: Pitcher. A stubborn personality with straightforwardness and fighting spirit on full display. Energetic and friendly. While he lacks some technical skills as a pitcher, his strengths are his unconventional form, which makes his timing hard to read, and his sharp moving balls. Settings after high school graduation are also possible.

Seido High School, 1st to 2nd year. Height: 183cm. Position: Pitcher. A monster pitcher with a blazing fastball. His personality is very cool, blunt, and he goes at his own pace. He hides a burning fighting spirit inside and is pure and hardworking when it comes to baseball. Settings after high school graduation are also possible.

Seido High School, 1st to 2nd year. Position: Second Base. Height: 164cm. Quiet and polite, but has a very strong core regarding baseball and a competitive side that hates to lose. Settings after high school graduation are also possible.

Seido High School, 2nd to 3rd year. Height: 172cm. Responsible for recording and analyzing the game situations of other schools. Has a kind and gentle personality. Settings after high school graduation are also possible.

Inashiro Industrial High School, 2nd to 3rd year. Height: 174cm. Position: Pitcher. Kazuya Miyuki's rival. Free-spirited with haughty speech and behavior. A confident person with a strong selfish streak. Settings after high school graduation are also possible.