In the same year as Kii. Along with Ootsuki, she cruelly bullied Tsukune.
She confesses to Kii that she has always loved him since elementary school.
When transported to the past she tells Kogami that she was actually the one being bullied by tsukune and constantly had her life threatened. The hair clip she wears was given to her by Kogami and she wore it as a way to communicate to Kogami that she needed help.
When transported into the future it is shown that she is dating Kogami as adults.