Haruka Koga

Оригінальне ім’я: 古賀春華

Daughter to the businessman whom Hiro's father works for, she was a high school baseball enthusiast. A hardworking baseball club manager, she played an instrumental role in creating and supporting Senkawa's baseball club. As time goes along, her feelings for Hiro grow more apparent, but Hiro chooses not to respond. She dreams of being an air flight stewardess as well as a professional baseballer's wife.