Fujio Koga

Оригінальне ім’я: 古賀富士夫

Haruka's older brother, who eventually becomes the coach of Senkawa's baseball team. Although he was a talented player in his youth, he had no opportunity to actually demonstrate his skills, because of his coach. Bears a grudge against his former coach, and hopes to defeat him someday. Is coaching for the first time. [source: AdachiFan]