She is the girlfriend of Yazaki Norikazu. She gets raped by Keito's band members.
In her past, she remember a young boy who was abused and lived near her home. The boy gave her a clover. She wished to help him, but she cannot. She started to take psychology in college, so she can help people.
Tokano Yuuka is created by Hatsuki Kyo. She has no information regarding any inspiration used to create her. She first appears in chapter 1 of Cross and Crime volume 1.
She is seen listening to music. Later, she meets up with her boyfriend, Yazaki Norikazu, who gave the good news of getting a chance to interview Keito. Afterwards, she has sex with him. In the band room, she, Yazaki, and Keito have drinks, and she tells Keito that Yazaki had too much. While Keito helps Yazaki get some water, Yuuka is left alone with the band members in the studio room. The band members raped her against her will. She gets home devastated and learns that Keito had drive her boyfriend home without telling her.