Ookubo, Hiroko

大久保博子

Manager of the prefab team, she is one year ahead of Kō. Although some players call her "chubby," she has a kind heart and works very hard. Like Risa Shido, she was also a former foreign exchange student. However, unlike the arrogant Risa Shido, she is humble and down-to-earth. She is the granddaughter of the Seishu board chairman, but she never takes advantage of that fact.