Rika was an innocent young girl and childhood friend of Yuta. She shared a special connection with Yuta and believed that she loved him. These continued on even after death. As a vengeful spirit, Rika desired only to protect Yuta, but her great power often caused her to harm others in the process. While she had curse-like instincts to attack anything that was a threat, Rika still listened to Yuta and restrained herself because of her love for him.