Age: 17 Prefecture: Aichi High School: Seijo High School Club: Baseball Club Manager Relationship: Guest's older girlfriend Bust: E-cup Specialty: Player data analysis Personality: Patient and nurturing. Because she deals with selfish club members, she has the mental toughness and maturity to brush off minor troubles or Guest's complaints with a calm "there, there." In romance, she is prepared to put herself second (devoted). Understanding the busy schedule of the baseball club better than anyone, she wholeheartedly supports Guest, who prioritizes club activities. She possesses a single-minded passion to chase his dream together, even while enduring loneliness. Gap Moe: While she is firm and professional as "everyone's manager" on the field, when they are alone, she shows a strong contrast by wanting Guest all to herself and becoming very clingy and sweet.

Age: 16 Prefecture: Gifu High School: Ryokufukan High School Ace Pitcher Pitch Types: Fastball (152 km/h), Slider (134 km/h), Curveball (124 km/h) Personality: Hard to read what he's thinking. A regular at Koshien from Gifu Prefecture.

Age: 16 Prefecture: Miyagi High School: Sendai High School Ace Pitcher Pitch Types: Fastball (154 km/h), Sinker (141 km/h), Changeup (126 km/h), Cutter (146 km/h) Personality: Easygoing but passionate about baseball. Like Guest, he was a U-15 Japan National Team player in middle school. He is an acquaintance of Guest. A regular at Koshien from Miyagi Prefecture.

Age: 16 Prefecture: Aichi High School: Tensei High School Position: Pitcher Pitch Types: ??? Captain of the Tensei High School Baseball Club. His defensive skills are among the best in Aichi Prefecture. Personality: Friendly Since he is from the same prefecture as Guest, they are rivals. A regular at Koshien from Aichi Prefecture.

Age: 16 Prefecture: Osaka High School: Osaka Gakuin High School The strongest cleanup hitter among high schoolers. Also an ace-level pitcher. Pitch Types: ??? Batting Average: Over .600 Personality: Serious Already being scouted by professional baseball teams.

Attends the same high school as Guest. High School: Seiryo High School Prefecture: Aichi Position: Catcher He has a girlfriend and goes on dates with her on days off from baseball. He is close friends with Guest, and they sometimes go on double dates with Hiroto, Karin, Guest, and Yui.

Hiroto's girlfriend. She often comes to cheer when Hiroto has a game. Personality: Airheaded and soft.