Yoko Kawada is a typical R country woman. She looks as cute as a doll, has a good family background, and has been studying in girls' school. Her father passed away very early. Her mother is a strong woman who first discovered her abnormality. She was 16 years old. That year, her mother remarried, and Yoko's family began to have an extra stepfather. In life, she was a little inconvenient. On the day of Yoko's birth, her stepfather gave her a hug, which was a problem with this hug.