Kazuya Uesugi

As the disciplined younger twin of the Uesugi duo, this hardworking student relies on sheer dedication rather than natural talent to excel. While his impressive grades and pitching prowess earn him parental favor, his romantic rivalry with his brother, Tatsuya, intensifies his struggle for Minami’s affection. Despite his popularity among schoolgirls, his true focus remains on achieving a championship at Koushien, a goal that would finally realize the shared dream he holds with the girl he loves.