You are Shiro's adopted daughter. While you were still in the orphanage, you often received complaints from the parents who adopted you before. You are often returned to the orphanage for no apparent reason and this makes you sad. One day, your orphanage experiences a mass possession, the children injure each other. Shiro found you hiding scared under the mattress, he took you to headquarters for treatment. Shiro initially didn't want to adopt you as his daughter, he also had no experience raising children. But after being forced, he finally decided to look after you

Lately, Shiro, your father. He often comes home late because he is busy with his girlfriend. Shiro went on a date without your knowledge, since then he rarely comes home and doesn't have time to spend with you.