Hashimoto Mayumi, a typical high school girl. She plans on seeking revenge on her classmate Kuroda Aya for bullying and torturing her. One day, she finds a strange ad regarding sending tormentors to hell. Is this hotline to hell real? Will she get her revenge?

How nice would it be to be to be able to send someone to Hell with just a simple click of the button? A girl named Ryouko is haunted by a stalker.Desperate to get this despicable man from stalking her any further, she types in his name (only known to her as Stalker) on the Jigoku Shoujo web site, and later receives a call confirming her request. She meets Enma Ai and explains her situation to her and her team, but Ryouko finds out that it's not as simple as it appears ... not only will her stalker go to Hell, but so will she as a consequence for using their services. Is it worth the price of going to Hell for eternity?

Muroi Kouichi was a high school student with high aspirations to play in his first baseball tournament, but his short life had been plagued by the constant bullying from the "star" player Hanagasa Mamoru who enjoyed tormenting him with his baseball bat, and it became so bad that it eventually lead to his death or even suicide. His friend Iwashita had kept the bullying a secret until the very end, but it ended up backfiring on him when Muroi's mother publicly accused him of murdering her son instead of blaming the real culprit. Iwashita decides to take matters into his own hands and summons Enma Ai to take care of the dirty work for him. Will he pull the string?

Junko-chan's life has been plagued by eternal heartache and sorrow due to the loss of both her parents at a very young age as well as the recent loss of her best friend and loyal dog Candy. She's horrified to discover that the doctor who was supposed to be taking care of Candy's injured body had actually been too busy chatting on the phone at the time instead of tending to the dog's care. By the time he finally looked at the dog, it was too late and the poor soul had already left its injured body. It's obvious that Junko-chan's now going to utilize Ai's services to get back at Honjou-sensei for ignoring her dog's pleas of help, but she initially doesn't want to go through with it because of her fears of spending eternity in Hell.

Tamura Misato is an employee for the online shop Dead Line and often has to work insanely long hours just to keep up with her heavy workload. Kaifu Riho is the president and founder of the company and is a complete dud when it comes to computers, but she lies and takes all the credit for Misato's computer knowledge as her own and threatens Misato with going public about her minor shoplifting stunt if she refuses to comply with her rules. Her employees, meanwhile, are absolutely clueless about the president's "true" talents and believe that she's created the successful company all on her own when she really did nothing to help the company become successful. She's even tried to summon Ai and company many times for her own selfish reasons, but they've refused to accept her request and instead have secretly been investigating her company (and her illegal tactics) right under her eyes.

Yasuda-san is the helpless victim in this episode, and she is being bullied by a woman named Amiko Todaka-san whose husband runs a large branch office. Unfortunately, her daughter is being bullied at school as well and doesn't know why everyone is so hostile toward her. Her husband's having a hellish time at work as well and blames his wife for starting trouble with the boss's wife even though she's done nothing to cause this dilemma. As if that weren't enough, Yasuda-san is accused of cheating on her husband with another man when in actuality she was attacked and possibly even raped by the man that Todaka-san had sent to attack her. Yasuda-san's daughter doesn't understand why her entire family is being victimized by Todoka-san, but she isn't going allow it to continue any longer and summons Enma Ai to help her uncover past events that started this whole mess.

Ayaka is an aspiring actress who is adopted by Kurenai Midori because of her potential talent for acting, but it's pretty obvious from the very beginning that she isn't nearly as talented or as gifted as her adopted mother had hoped for. Instead, she appears to be rather clumsy and untalented since can't even get her role as a weeping willow right, and she even has to endure an embarassing lecture from her mom in front of the entire class. She pathetically summons Emna Ai in hopes of teaching her mother a lesson in attitude adjustment since she's incapable of confronting her about it herself, but she thinks twice about her decision in revenge after getting a glimpse of spending eternity in Hell.

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.

Yuka Kasuga and her sister, Hiromi finally fulfills their dream of opening a bakery, and allows one of their father's friend, Shinya Morizaki to taste one of their father's unique creations. Morizaki stole the sisters' recipe, claiming it his own, causing humiliation and bankruptcy. Yuka uses the Hotline to Hell to send Morizaki to hell.

Minami Shibuya intends to send her friend, Shiori Akasaka to hell. Soon after, they became friends again and Shibuya decided not to send Akasaka to hell. But, Akasaka was sent to hell after accidentally pulling the string on the straw doll.

Masaya Kataoka seeks revenge against journalist, Takashi Inagaki for framing him and his late father. Hajime Shibata is somehow involved as Inagaki was his former boss.

Akane Sawai stopped going to school due to emotional problems. Now, she locks herself up to her room and only opens up to her textmate, Yoshiki Fukasawa, who constantly visits her to check on her and convinces her to go to school. Sawai gets irritated by this, and is convinced by her textmate to send Fukasawa to hell. She finds out that her textmate is really Fukusawa and after coming to an understanding, Fukusawa convinces Sawai to send him to hell.

Ai Enma, the girl from hell isn't just a recent event. This has been going on for hundreds of years. A man named Fukumoto send a man called Okawachi to hell using the Hell Correspondence, or The Hotline To Hell. Hajime Shibata saw him die before him for over fifty years ago.

Sai Kirino seeks revenge for the death of the father due to a secret that exists between him and her primary suspect, Mayor Ryouzo Kusunoki. Hajime Shibata succeeded in making him apologize, but it was too late.

Mina Minato sends her aunt, Fujie Minato to hell after finding out that Fujie had murdered Mina's mother. Mina and her boyfriend was assaulted by Fujie as well.

Yumi and Yuki, identical twin sisters, both work as circus performers. Yuki is much favored than Yumi. While Yuki is pampered, Yumi was abused, both verbally and physically. Because of this, Yumi sends her twin to hell by using the Hell Correspondence.

Hajime Shibata and his daughter were caught in a fog. They had found themselves caught in an abandoned sanitarium. There, they found the ghost of a vengeful girl named Nina.

Miki Kawakami finds herself and her dogs enslaved by a rich and evil women called Meiko Shimono because Miki's two collies bit her. Miki called Ai Enma through the Hotline to Hell when Meiko killed her dogs. It appears that Meiki had killed her own parents as she desired their inheritance.

An orphan, Inori Ujie was picked by her orphanage's main benefactor, a doll maker, Kyogetsu Inori, to be her son's bride. The requirements: Inori must act like a doll at all times. She is not allowed to do anything, not even serve her husband breakfast. She was forced to, for the sake of the orphanage. Inori sends Kyogetsu to hell, thinking that she would have her time with her husband. But, it turns out that her husband was no different than his mother...

Television psychic, Gil de Ronfell aka L'Enfer claims himself as the Hell Boy, challanges Hell Girl, Ai Enma to a duel. It turns out to be a fatal mistake.

Taking a break from their urban lives, Yuko Murai and her father move to a farm. Their neighbor Ryosuke Sekine helps them out on the farm. The father and daughter's crops turned out bad as they were overrun by pests. Due to alcoholism, Yuko's father dies. Yuko eventually found out that Sekine had sabotaged their crops and attempts to send him to hell, but was convinced not to by Hajime Shibata.

Heartbroken husband, Goro Suetsugu sends his wife to hell after finding out that she is cheating on him. Hajime Shibata had failed to stop him and he ends up telling Goro a similar tale on his late wife, Ayumi.

Kanako Sakuragi, a kind and sweet nurse was sent to hell by an unknown drug-addict. Hajime Shibata suspected the husband of a former patient but loses trail when the person he suspected is computer-illiterate.

Hajime and Tsugumi Shibata are still searching for the Hell Girl. After finding out that they are related to Sentaro Shibata, a former friend of the Hell Girl, they are then confronted by Ai Enma.

It is revealed how Ai Enma became the Hell Girl. It also turns out that Ai Enma had been buried alive as a ritual sacrifice by Sentaro Shibata, her very own best friend.

Ai Enma attempts to persuade Tsugumi Shibata to send Hajime Shibata, her very own father, to hell. She urges Tsugumi to do so by using the case of her late mother, Ayumi.