Reina is Hiyori's second year classmate, but is a year older because she is a returnee from the United States. She is a happy go lucky girl, and isn't afraid to speak her mind. She sits beside Yuushin in class, and has also confessed to him. She considers Hiyori as her rival and comrade, because they were both 'rejected' by Yuushin, although Hiyori has not yet given Yuushin a direct confession. She also told Yuushin that Hiyori and Kou looked good together, but that would be impossible because Hiyori has feelings for Yuushin.