Ten years ago, Karin's mother was raped, and the perpetrator was arrested after his father reported it.
Karin, who was still small, doesn't know about this.
And ten years later, the man who was released from prison had an unreasonable hatred for Karin's parents.
"You've been given me for 10 years. Is this cute girl?
I'll do what I've wanted to do in my cage for 10 years."
