Kojirou Kageyama

As a dedicated member of the school’s shogi club, this loyal student serves as Maruo’s closest confidant. He is frequently seen alongside Sasaki at various tennis matches, providing enthusiastic emotional support for his teammate. Driven by a strong sense of friendship, he remains a constant, encouraging presence during pivotal sporting moments, bridging the gap between the strategic world of shogi and the high-energy atmosphere of the tennis court.