Yuika Koga

On the outside she is a cute and outgoing girl who is playful with her friends especially Keikihttps://anilist.co/character/135801/KeikiKiryuu. She can sometimes be childish and jealous when Keiki is around other girls especially Sayukihttps://anilist.co/character/135802/SayukiTokihara. She does not get along with Sayuki and is always picking on her and the same goes both ways. Source: Kawaikereba Wiki