Yuta was a very timid and lonely boy who was bullied a lot while growing up. Due to Rika haunting much of his early life, Yuta was unable to connect with other people and has lost all confidence in himself. While his timid nature stays intact, Yuta becomes more social and interacts with others normally. 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.