She's Makoto's classmate. One day, she finds out that Makoto had taken a picture of Kotonoha Katsura, which is a part of a charm to see if they were meant to be, she decides to help Makoto get together with Kotonoha. Despite her help, she also harbors feelings for Makoto, constantly fighting her desire to help him and to be with him.
She kills Makoto with a kitchen knife for choosing Kotonoha over her.
Manga[]
She stabs and kills Kotonoha for getting close to Makoto.
She then tells Makoto that she will be the one to bring him happiness instead of Kotonoha after admitting to stabbing her. She then declares to Makoto that they'll be together forever.