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.
Ougi Emi’s family has changed ever since her brother, Ougi Tatsuya, died in a motorcycle accident. Her mother is ignoring the family to get the city to take the blame for her son's death. Tatsuya was everything for his mother and Emi tries to help her mother get over it, but her mother continues to be unconcerned for the well-being of her daughter. Emi learns that her brother had one of Ai's dolls but hadn't used it yet, now it belongs to Emi. One day her family becomes dysfunctional and she sends her mother to hell. After that, she realizes that she's better off without her mother.Watch Now:Amazon
A girl named Mari is in an abusive relationship with her former friend (who happens to be identical to her), Juri. Juri contacted The Hotline to Hell because she and Mari had a close relationship that was ruined in her eyes when Mari briefly considered having an upperclassman as her tennis double instead of Juri. Juri has been forcing Mari to do exactly what she says, otherwise she'll pull the string. Ichimoku Ren becomes involved when trying to get more background on Mari and figuring out why Juri hasn't pulled the string yet. Juri gives Mari an album of pictures of them together. After going to get Juri's lunch, Mari runs into Ren and hugs him when he comforts her. Juri, having followed Mari in order to tell her she's decided to forgive her, is angry that Mari could be close to anyone else and runs off to pull the string. Mari tells her they'll always be together, but at that moment Juri is hit by a car and fatally injured. Mari pulls the string on the doll so that they'll be together in Hell and, shortly after she's taken, Juri arrives in Hell. Somehow, Mari has taken the album with her.
Mr. Tsuyuki and Mr. and Mrs. Hasue, among others, have formed a mob. Mr. Tsuyuki convinces the others that they must kill Takuma. Hotaru looks for her brother, who is nowhere to be found, but she finds the book about Hell Girl, and runs away with Takuma.
After the recent tragedies that have occurred in his family, Takuma is suspected of having murdered his mother and gravely wounded his father, but has not been arrested due to the lack of evidence. The townspeople continue to suspect him, and call him the "devil's child". As Takuma tries to piece his life back together, he meets a young girl, Seri, who happened to live near him before her house was torn down to make way for a train station that never materialized. Having been emotionally attached to the house, she intends to have her revenge against at least one of the persons who had ordered her house's destruction in the first place.
People are disappearing one after the other in the town of Lovely Hills - Mr. Mariyama is sent to Hell by his daughter who hates him for scolding her. A woman named Akiko sends her husband to Hell because she regrets marrying him. Then Akiko's friend sends her to Hell, because she's always hated Akiko, and so forth. All of the disappearances are blamed on Takuma. While the disappearances are happening, Detective Meshiai goes to the library and finds the book written by Shibata Hajime about Hell Girl.Watch Now:Amazon
Convenience store worker Tsuzuki Kinya offers to take care of Kashiwagi Hidemi after she misses the last train home. As they are walking together, someone takes a picture of them and posts it online. Because Tsuzuki looks like a delinquent the people around Kashiwagi become suspicious. Kashiwagi will send the person who uploaded the picture to Hell for giving her a bad reputation.
Kaori has a sister who is the product of her father's affair with another woman. When the love child shows up and demands to be made part of the family, Kaori's friend discovers that she also has plans to murder Kaori for her share of inheritance.
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.
A low-profile girl named Inao Kaede claims to be a fortune-teller. At the sign of her continued success, a female student named Nishino apologizes to Inao for previously making fun of her fortune telling and requests she kill a college student who she claims is stalking her every day.
Amagi Shizuko adopts a stray cat and names it Muru. She just moved in and has not introduced herself to her neighbors yet. Whenever she tries to no one is at home. Ren often comes to visit her. A few days after adopting the cat, she begins to receive mysterious prank calls. Items that she did not order were delivered to her house. She also receives threatening letters, warning her to throw out the cat. Amagi does not know what to do as she does not have enough money to move out yet. She hires a private investigation agency and they discovers that it is her neighbor named Tachibana Kyouko making prank calls and sending threats. She sends a letter to Tachibana apologising about the cat and told her that she will move out with the cat as soon as possible. That being done, she hears bangs and crashes from next door. The next day, she gets home and discovers that her apartment door is wide open and Muru is gone. She frantically attempts to search for the cat and found a plastic bag filled with meat outside. Thinking that it is Muru, she pulls the string on Ai's doll to send Tachibana to hell. Later in the episode, it is revealed that the cat belonged to Tachibana and she was upset that Amagi adopted the cat. Amagi hears distant cat meows and discovers Muru thus the bag of meat was nothing but another prank.
Baba Shouko is a teacher everyone dislikes because she frequently scolds students and is very strict. A fake Hotline to Hell was created by somebody and it is circulated among students who were just scolded by Baba sensei. Tracing was carried out and they concluded that a student named Ikami Waka created and circulated the fake Hotline to Hell. However, Ikami claims that she did not do it. On the same night, another teacher named Kuriyama Mami calls Ikami and tells her that it was Baba who made the fake Hotline to Hell, blames her for it and told Ikami to come to school. Mami-sensei waits in school for Ikami to come and tried to convince Ikami to access the real Hotline to Hell to send Baba to hell. To her surprise, the one who turned up is Ai. Mami and Ai already knew each other from their pasts. The truth is Mami was the one who created the fake Hotline to Hell and blamed the students for it. It was all because Baba scolded Mami when she was young and she blames Baba for all her problems. Baba comes and types in Mami's name into the real Hotline to Hell, as a punishment for an attempt to use her students as sacrifices. Baba agrees to go to hell as she blamed herself for coaching a teacher like Mami.
Yuzuki lived happily with her parents, until her father, a bus driver, died in a bus crash due to faulty brakes. The whole town accused the Mikage family of murder and being irresponsible. Sick and without means to support herself she decides to leave.
Hosono Souta is a boy who always sits in the infirmary. Because of this, his classmates make fun of him. He falls in love with a classmate, Nitta Kiwako, because she was the only one who did not make fun of him. He dislikes her current boyfriend. Hosono attempts to access the Hotline to Hell, but Ai rejects him. While Hosono is stalking Kiwako at a bowling alley, he overhears her boyfriend suggesting to his friend, Sawazaki, that he will "lend" Kiwako to him so that Sawazaki can finally lose his virginity. Ai appears to Hosono that night, but while he begs her to save Kiwako, he refuses to sell his soul in exchange for revenge. Kiwako later tells Hosono that she accessed the Hotline to Hell and has sent her horrible boyfriend to Hell. Hosono is shocked that she would agree to go to Hell for that and turns down Ai's help once and for all. At the end of the episode it is shown that Hosono purchases a blade, and plans to kill Sawazaki.
A young woman is trying to get her ex-boyfriend to get back together with her for the sake of her and the child she's carrying. She has the straw doll in case he refuses, but she is obsessively pursuing a reunion. Her story is intersected with Hone Onna's story. Originally, Hone Onna was a young woman named Tsuyu who was sold into prostitution to cover the debts of her lover. Tsuyu used to make paper ball balloons to sell. After a few years, Tsuyu is joined by a younger prostitute named Kion. Kion feels inferior to Tsuyu and ultimately betrays her, resulting in the violent death that transforms Tsuyu into Hone Onna. Back in the present day, the young lady sends her ex to hell, then attempts to jump off a bridge. Hone Onna realizes the spirit of Kion, who was wounded by her lover after she revealed her pregnancy and then jumped off a bridge, has been possessing women and forcing them to kill themselves by jumping off bridges. Kion tells Hone Onna it was nice to see her again, then vanishes, still on her path of vengeance. Hone Onna asked Ai to please pick Kion up someday, as Ai saved her from an eternity of sorrow and anger.
Yuzuki visits a mansion to visit the elderly woman she saw in her vision. However, a much younger woman comes to the door and claims that there is no one in the house who fits the description. Meanwhile, Yamawaro begs to be a doll.
Yuzuki realizes that nobody at school or in her neighborhood knows who she is. Tsugumi has given up hope of stopping the Jigoku and concludes that Yuzuki is not a person of this world anymore. Tsugumi notices that all this time,Yuzuki's life was an illusion.When Yuzuki returns home, she finds her apartment in derelict state and makes a horrifying discovery in the ruins.
A girl named Ran tries to send a man who betrayed her to hell, but meets a geisha woman who said she'll help her get revenge. Ran disguised herself and seduced the man. The woman steals all the man's money and he finally commited suicide. Ran eventually finds out that the woman has been using her and is attacked. She managed to send the woman to Hell before she finally dies (after being attacked by that woman).
Since Ai's death, her companions have gone their separate ways. But Kikuri announces her return, and they gather as faculty and staff at a school.
Onda Maki is being bullied in class, but she doesn't know who is bullying her. She spends every night typing her classmates' names into the Hotline to Hell engine, but always erases it. Her science teacher Kamishiro tries to help her, but Onda always refuses.Eventually, she finds out that Kamishiro is the one who has been bullying her and sends her to Hell. Onda has a new friend, and as they are working after school on a project, Onda discovers that her friend had been helping Kamishiro bully her.
Yagisawa's wife, Chinami, is in the hospital, fighting an illness. He'll do anything for money to help her. He enters the site to get revenge on Hhouki, the man who tricked him into killing a man for money. Hhouki wanders into the hospital and tells Chinami that her husband killed a man, causing her to go into a coma due to her distress. He eventually send Hhouki hell (for refusing to help his wife and blackmailing him). When he returns to the hospital to tell his wife that everything is okay, she no longer remembers him. Kikuri is seen wandering around the hospital and having a strange effect on Chinami. In this episode, she leaves the mortal world with Ai and officially becomes part of the group.Watch Now:Amazon
Suzaki Maho hates her brother, Suzaki Miki, for chasing away her boyfriends. Maho believes that because he is a model, he feels that he is prettier than she is. The pair has no parents thus they only have each other. Maho discovers that Miki dresses up as a woman and steals her boyfriends away. He later confesses his love to his Maho. When Maho can no longer take the pressure, she ends up sending him to Hell.
A boy named Ichimura Kazuya is a marathon runner. He does the morning rounds of newspaper in order to support his mother’s habit of buying kimonos from a charming salesperson. His parents are constantly fighting, so his mother uses money (she believes they are from the husband) to buy kimonos. Kazuya’s hatred for the salesperson drives him to the Hell Hotline.
Hone Onna meets a director named Negoro Tetsuro. He wants Hone Onna to be the protagonist (Sone Anna) in his film. He is obsessed about writing screen plays. He has a wife and two lovers but seems uninterested in all of them. Eventually Tetsuro’s wife, one of his lovers (Kumiko-chan) and Hone Onna become good friends. Then they decided to go to the hot springs. But being clumsy and foolish, Tetsuro bumps into a stranger’s car and a few hours later, spills coffee on him. That man, named Gyouta Hauhiroku, sends Tetsuro to hell. In the end, Hone Onna erases herself from Kumiko and Tetsuro's wife's memories. This episode depicts the flash-backs of Hone Onna.