A childhood friend of Tatara Tani, and the younger twin sister of Ranko Hanazono. She is noted to be the smartest student among the first years. As a member of a popular idol group, _Otowazawa 47_, she aims to become the #1 idol in Japan. However, she also harbors a crush on Tatara, and her status as an idol forces her to disguise as her twin sister in order to go out on a date with him.