Silent Friendship
In this episode, Enma Ai meets a small girl who reminds her of something memorable. That girl's dad is researching Jigoku Shoujo and the Hell Correspondence, trying to write an article called "The Truth about the Agent of Revenge" about them. His daughter however, acts weirdly due to her encounter with Enma Ai, and starts to see things related to the people seeking revenge. Meanwhile, Tanuma, a young woman, is out seeking revenge on her former boss for harming her best friend and misrepresenting money.
Aired 23/11/2005EP 8 - Silent Friendship

Hell Girl
Somewhere in the vast sea of the Internet, there's a website that can only be accessed at the stroke of midnight. Known as the Jigoku Tsushin, rumor has it that if you post a grudge there, the Jigoku Shoujo will appear and drag whoever torments you into the inferno. Very little is known about the girl - all we know for sure is that she lives with her equally enigmatic grandmother, that three magical straw dolls accompany and serve her, and that whenever a posting on the Jigoku Tsushin moves her, she becomes the Jigoku Shoujo.