Jigoku Shoujo: Futakomori

Ai Enma resumes her role as the Hell Girl, operating the Hell Hotline to let individuals express grievances against those who have wronged them, resulting in the accused being sent to Hell. Those who use the service are condemned to Hell upon their own deaths. A girl named Kikuri, distinguished by her blue eyes, emerges and appears to have unusual motives concerning Ai and the Hell Hotline's activities.