Distrust
Mr. Kimiko insults Mr. Narito's singing during a community choir practice. Mr. Narito becomes so enraged by this petty insult that he sends Mr. Kimiko to Hell, and blames Takuma for Mr. Kimiko's disappearance. To keep up the ruse, Mr. Narito sets up a vigil outside Takuma's house with other neighbours.
Aired 17/03/2007EP 23 - Distrust
2006
Hell Girl: Two Mirrors
Ai Enma once again returns as the Jigoku Shoujo, who uses Jigoku Tsuushin (Hell Hotline) to allow people to post their grudges on their tormentors, sending them straight to Hell. In exchange, the users of the website will end up in Hell after they die. Meanwhile, a mysterious girl with blue eyes called Kikuri appears and seems to have strange intentions towards Ai and Jigoku Tsuushin's operation.
(Source: Anime News Network)