Most episodes are self-contained short stories in which the series narrates the suffering of a different individual caused by one or more antagonists. In general during each arc, the protagonists' dramas are explained in detail from the start of their grudges, through the escalation of their torment until it becomes unbearable and they resort to accessing the Hell Correspondence website. Although in general, the client gives the antagonist a chance, he or she usually ends up pulling the string on his or her doll and sending the antagonist to hell. Once they have pulled the string, before taking the antagonist to hell, Ai Enma punishes the person for his or her sins with the help of her companions.
In the first season, the story soon follows a journalist named Shibata Hajime, a former blackmailer, and his daughter Tsugumi who shares a strange connection with the Hell Girl as they investigate the truth behind the Hell Girl. In the second season, a mysterious young girl from Hell, named Kikuri who is able to travel freely between Earth and the Twilight realm where Ai resides, is introduced. Later, the plot centers around Takuma Kurebayashi, a boy who is blamed by his townsfolk for causing disappearances around the town that are in reality caused by the townsfolk using the Hell Correspondence. In the third season, some time after Ai's death, Kikuri returns to recruit Ai's assistants along with a yōkai named Yamawaro, who accepts an old offer from Ai to become her fourth assistant. The story follows Ai's mysterious revival from death and subsequent inhabitation of the body of a young schoolgirl, Yuzuki Mikage.
Hell CorrespondenceThe medium through which a client contacts Ai Enma has changed over the centuries. Initially clients would write the names of whom they hated on an ema, which later changed to sending a letter to the address appearing in a three-column newspaper advertisement only visible to those with enough hatred. Once the internet became available, people could access the Hell Correspondence website, otherwise known as the "Hotline to Hell". Soon after, the site was adapted into a mobile version that could be accessed from cell phones.
Each medium can only be used at midnight by one who harbors a desire for revenge against their object of hatred. Should someone submit the name of someone against whom they bear a grudge or immense hatred, and their request is accepted, Ai Enma will take them to a realm of perpetual twilight where she offers them a straw doll, one of her companions, with a red string wound around its neck and describe to the client the details of their contract; should the client pull the string tied around the doll's neck, she will ferry the target of the revenge straightaway to Hell. However, once the client's life has ended, he or she too will go to Hell, and a black crest-shaped mark appears on the client's chest to serve as a permanent reminder of this and their decision to send someone to Hell. However, this mark is no guarantee that the person themselves won't be sent to hell by another client...
Characters
Ai Enma (閻魔 あい, Enma Ai?) Voiced by: Mamiko Noto (Japanese), Brina Palencia (English)
The main protagonist of the series, who is arguably an anti-heroine as well. With long, straight black layered hair with a fringe, ruby-red eyes and pale skin, she is a spiritual entity with a tragic past, who lives in a place frozen in time as it basks in eternal sunset, along with her grandmother. There are 4 dolls visible near the computer, which are her companions. With an old computer inside their house, Ai is able to receive the names of the clients who have used the website, and delivers their revenge. She normally wears a black sailor uniform, but always wears a black kimono with floral designs when delivering the vengeance of a client. Whenever a contract is fulfilled, after the targeted person suffers the hellish hallucinations which exploit their flaws and crimes, she appears to the condemned and recites the following rite, before rowing them to eternal damnation:
Yami ni madoishi awarena kage yo (闇に惑いし哀れ な影よ?, "Oh,pitiful shadow cloaked in darkness")
Hito o kizutsuke otoshimete (人を傷つけ貶め て?, "Thy actions cause men pain and suffering")
Tsumi ni oboreshi gō no tama (罪に溺れし業の 魂?, " Thy soul drowns in thy sins")
Ippen... shindemiru? (一遍... 死んで見る？?, "How would you like to see what death is like?") Ai started her career as the Hell Girl by her own act of vengeance on the villagers who sentenced her to a sacrificial death as part of their village's tradition. Her eyes, once a deep brown, turned red arguably at the point where Sentarou (her childhood friend and cousin who gave in under the villagers' pressure to bury her alive) gave the first shovel of soil onto her face. She broke out of her grave after a while, and took revenge on the entire village with her wrath, burning it to the ground. Her task of fulfilling other people's vengeance and ferrying people to Hell is her punishment, a task which she had performed for 400 years after that incident. A Spider, which is later revealed to be the God of Hell, gave her new life again and made a pact with her; in exchange for her immortal form, she cannot enter Hell and must remain on the shores of Hell, acting as the deliverer of people's hatred and vengeance. In order to serve these tasks, The God of Hell demanded that Ai forget her own hatred, numbing herself to the sufferings of others and becoming a mere observer of any happenings. If she hadn't this punishment, the souls of her beloved ones would have to wander in Hell forever. Having no other choice, Ai agreed with the God of Hell and became the Hell Girl.
Although this task is presented as atonement, it is unknown whether she will ever be freed of it. Wanyūdō noted she still had feelings, though, although she did not express them strongly, and it was later revealed that Ai had been ordered to close her heart by the Spider. But the experiences she has with the Shibatas made Ai express anger towards them. When enraged, Ai demonstrates the ability to hurl great blasts of energy, as well as the power to create elaborate illusions and teleport. She also has the ability to show someone the future of a grudge, as she showed Yuzuki in Episode 16 of Mitsuganae. Though, this ability may be limited to some degree, as Ai was unable to predict her confrontation with the Hell Boy, Gill du Ronfell.
In the second season, Ai becomes more expressive and shows more emotions, being more willing to interact with her "clients" and victims. She even puts up a "V for Victory" sign in front of her target by way of mocking him as he is dragged to his doom. She had also been seen reading from a fashion magazine while her compatriots watch over their client, and had showed concern towards a mother who willingly ended her life so that her daughter doesn't have to send her to Hell. As she witnesses Takuma Kurebayashi's disheartening persecution, Ai recollects her emotions pertaining to her own wrongful persecution and she defies her 'employer', the God of Hell, and becomes restored to human life, and killed shortly thereafter, when saving Takuma from his tormentors. After Ai's self-sacrifice, her body dissolves into sakura petals and drifts into the sky.
In the beginning of the third season, Ai transports another girl, Yuzuki, to a strange illusion and a vision, where Ai possessed her. Eventually, her body is later released during The Six-script Lantern ceremony in her town in which the gate to Hell is temporarily open allowing Ai to be released from her body. Ai eventually reveals to Yuzuki that she is destined to become her successor. Ai disappears without a word after Yuzuki becomes Hell Girl. Eventually she returns to take the role of Hell Girl once again in order to spare Yuzuki from being sent to Hell.
Wanyūdō (輪入道?) Voiced by: Takayuki Sugo (Japanese), R. Bruce Elliott (English)
Wanyūdō is the first of Ai's three companions. He generally appears as an old man whose eyes remains shut, wearing a traditional yukata with a long-sleeved haori, and a red scarf around his neck. When needed by Ai, he takes the form of the black straw doll that Ai hands to her clients in the series. He also frequently takes the form of Ai's coach with burning wheels when she goes to the human world to claim a soul. The coach bears the same black flame-crest that appears on the chest of those people who contract with the Hell Girl. Despite appearing quite mild-mannered, frail and weak with age at most times, Wanyūdō possesses considerable skills in martial arts and is capable of hurling fireballs and performing feats of inhuman strength. Wanyūdō's name is derived from the yōkai of the same name and means "A wheel entering the road". In episode 12 of Futakomori, it is revealed that he was the driver of a princess' entourage carriage, which fell off a cliff. The coach caught fire and all aboard were killed. As a result, he became a yōkai terrorizing people in the form of a flaming wheel with his own enlarged, infuriated face as a hubcap, until he met Ai and she invited him to join her as her first companion. Wanyūdō revealed to Ai his ability to shapeshift. Wanyūdō lives out his life in peace as a human after Ai dies at the end of the second season, but is soon recruited by Kikuri to become Ai's assistant again. At the end of the third season he comes to the aid of the newest Hell Girl, Yuzuki, but returns as Ai's assistant after she becomes Hell Girl again.
Ren Ichimoku (一目 連, Ichimoku Ren?) Voiced by: Masaya Matsukaze (Japanese), Todd Haberkorn (English)
Ren is Ai's second companion, and usually takes the form of a handsome young man in a green cardigan and a black shirt. His hair covers the left side of his face and that part of his face is usually seen. He has the ability to see the inside of a building through projecting the eye on the walls and ceilings. The large eye can also be used as a weapon through projecting intense flashes of light. When required, Ren becomes a blue straw doll. Ren's name means "one glance company". He is sometimes referred to as "Moku" or "Ishimoto Ren". His powers in human form is a reference to Daidarabotchi, a type of mythological giant that is enshrouded in shadow. It is later revealed that Ren is a tsukumogami, a type of spirit that originates from an artifact which has gained sentence after a long period of existence. In Ren's case, he was once a katana, forced to be aware and watch whatever was done with him. He was given his current form(s) by Ai, who collected him after he was abandoned on a large rock after a battle, during which his most recent owner was slain. Ai thinks that he is looking for something and asks him to accompany her. He agrees saying that the rock he was abandoned on was getting pretty boring. Since that time, Ren has apparently grown quite fond of his human form, displaying considerable vanity from time to time. Ai claims she invited him to join her because there is something that Ren is looking for, a fact perhaps manifested in Ren's occasional puzzlement and inability to understand the things humans do. Alternatively, some of Ren's comments indicate that what he was looking for was companionship, something to fill the emptiness of his existence as a sword used for endless killing. Ren has apparently developed feelings for his colleagues, seeing them as family. Ren lives his life in peace as a human between the events of the second and third seasons. This proves to be short lived after he is recruited by Kikuri to become Ai's assistant again. Ren serves as a science teacher at Yuzuki's school several times while investigating clients that attend the school. At the end of the third season when Yuzuki becomes Hell Girl, he and Hone investigate why Tsugumi is moving out of town. They suspect it was because of Hajime and because Tsugumi was unable to save Yuzuki. Ren becomes Ai's assistant once again after she replaces Yuzuki as Hell Girl.
Hone Onna (骨女?, Bone Woman) Voiced by: Takako Honda (Japanese), Jennifer Seman (English)
Hone Onna is Ai's third companion, and she often takes the form of a sultry woman in a kimono with its obi tied in front. She dislikes being called "old lady". She becomes the red straw doll when necessary by tossing her red obi jime over her shoulder. Hone Onna and Ren investigate the people who make a contract and the ones they have a grudge against. She usually infiltrates human society in casual clothing to investigate cases, on these occasions she tends to use the pseudonym "Sone Anna". She has used throwing knives as weapons in the first season of the show, and has shown considerable skill with these weapons. Hone Onna also seems to have some skill as a contortionist, which allows her to squeeze into very small places. The name Hone Onna comes from the legendary creature of the same name, literally meaning "bone woman", which reflects her ability to expose the bones in her body to scare the victims of the revenge Ai delivers. It is revealed that she had been a geisha named Tsuyu who was betrayed by a man whom she had fallen in love with after he sold her to a brothel to be able to pay off his own debts. Tsuyu was betrayed again when she attempted to arrange the escape of a fellow geisha named Kiyo with a man who had come to truly love Tsuyu. Tsuyu and the man were later murdered by a Yakuza, and that same Yakuza cast Tsuyu into a river afterward. Spirits rising from human bones thrown into the river before merged with Tsuyu's restless spirit, transforming Tsuyu into the yōkai Hone Onna, in which form she later met Ai. Hone lives out her life as a human after Ai dies at the end of the second season. This proves to be short lived as Kikuri comes to recruit her several years later to become Ai's assistant again. After Yuzuki becomes Hell Girl, she and Ren investigate why Tsugumi is moving out of town. The two suspect it is because of Hajime and because Tsugumi was unable to save Yuzuki. Hone becomes Ai's assistant again when she replaces Yuzuki as Hell Girl.
Ai's Grandmother (あいの祖母, Ai no Sobo?) Voiced by: Eriko Matsushima (Japanese), Juli Erickson (English)
She is never actually seen in the series, other than as a shadowy silhouette behind a paper screen that is always spinning thread in her room. She occasionally notifies Ai when a new client beeps on the computer and advises her, occasionally commenting on the cases she takes up. She doesn't talk to anyone except Ai, although in an episode in season one, she made the exception of talking to Shibata Hajime. A single human eyewitness in Futakomori who had observed Ai's grandmother ran in terror, implying that her appearance may be other than human. During the final episode of Futakomori she stops spinning threads for the first time and thanks Ai's three assistants for everything they have done. Ai's Grandmother doesn't appear in the third season until episode 14. That is due to the fact that neither of Ai's companions reside in the realm of Eternal Twilight anymore, and until that episode, instead of the usual ritualistic bathing and the grandma preparing Ai's nagajuban, Ai simply took over Yuzuki's body and appeared already dressed.
The Spider (人面蜘蛛, Jinmen Gumo?) Voiced by: Hidekatsu Shibata (Japanese), John Swasey (English)
An oddly-coloured spider with three eyes upon its abdomen, which appears in the sunset world where Ai and her assistants reside between assignments. It speaks with the voice of a man and is apparently Ai's superior, having been the one to pronounce sentence on her after she killed the people of her village. It appears to be holding the souls of Ai's loved ones (her parents) as hostage. If Ai does not do the task she has been given, The Spider has threatened that her parents would wander in darkness for eternity. The Spider demonstrates an ability to pilot the ferryboat to Hell and tries to restrain Ai, having decided to take her to Hell after her feelings of rage reawakened and she violently attacked the Shibatas. Ai turned out to be too strong for it to hold her without her consent. The Spider is neither liked nor trusted by Ai's assistants, with whom it in turn does not speak. In the last episode of Futakomori, Wanyūdō identifies The Spider as the God of Hell. It can be inferred that The God of Hell deliberately exposed Ai to a situation reminiscent of her own death in order to test whether she would obey its will or act on her impulse to interfere with Takuma's plight. The God of Hell returns in season 3 to punish the newest Hell Girl, Yuzuki, after she breaks the rules and tries to send a grudge of her own to Hell. Ai then returns to save Yuzuki from being sent to Hell by The God of Hell, and she offers to replace Yuzuki as Hell Girl. The God of Hell accepts and restores Ai's position as Hell Girl.
Kikuri (きくり?) Voiced by: Kanako Sakai
An enigmatic girl introduced in Futakomori. Some people said she is similar to Nemesis (mythology) in Greek as goddess of vengeance. Little is known about her except the fact she is not human. She can wander freely between the mortal plane and Ai's house in the sunset world, sometimes interfering with her and her companions' job; in one instance, she brought a human into the sunset world out of mischief. In stark contrast to Ai, Kikuri has completely purple eyes and her personality is far more childish than Ai's. She has stated that she likes Ai, and some of her actions and use of powers seem to be causing the greatest amount of suffering and fear possible. She seems to take delight in acts of low-level destructiveness, such as chopping off flowers or destroying anything that Ai cares for. She has shown incredible skills with her loincloth, using it to catch or hit objects with considerable accuracy and skill. Despite the fact that she wreaks havoc freely, she has only taken orders from Ai alone. This is seen when Kikuri touches Ai's grandmother's spinning wheels despite the woman's protests, ceasing only when Ai tells her to. In the last episode of the second season, it is revealed that Kikuri is a host for the will of The God of Hell, which can take over her body as it pleases. Hence, it becomes questionable how many of her malicious acts were of her own will and which were instigated by her master. Some of her acts could have been to ensure that Ai's clients would pull the string and send their tormentor to Hell. Nevertheless, she is still compassionate, showing a brief bout of grief immediately after Ai's death. After Ai's death and the release of her beloved ones to wander as lost souls, Kikuri rides on the boat and says "It's over... that was Ai's answer... Well done". As she says those words, she pokes a cherry the color of Ai's eyes in her former childish way. In the third season, Kikuri possesses a wind-up doll that often needs to be rewound by Yamawaro. She also expresses a desire to become Hell Girl several times. She is possessed by The God of Hell again at the end of the third season, but reverts back to Kukuri after Ai becomes Hell Girl again. She is apparently unaware of the fact that she is a host of The God of Hell, as she merely expresses a sensation of feeling sick before being possessed.
Yamawaro (山童?) Voiced by: Hekiru Shiina
A hellish creature commanded by the new Hell Girl in season 3, who takes on the look of a young boy, though he can also become a yellow straw doll. In human form, he calls himself by the name of Huang (黄). Often quiet and having a gentle demeanor, not much is known about him as of yet. He follows Kikuri on their assignments in the real world, referring to her as princess. His name is derived from the same name given to a legendary mountain-dwelling creature in Kyūshū from Gazu Hyakki Yakō, an illustrated book on Japanese folklore demons. In episode 6 of Mitsuganae it is hinted that Yamawaro has the power to manipulate objects. In Episode 17 of "Mitsuganae", it is revealed that his name basis holds some truth. He was a ghostly boy who roamed a mountain but whenever he was seen by humans, he looked like a walking pile of mushrooms. It seems in his time before joining Hell Girl, he looked upon a family by the name of Ashiya. Their son Hikaru had gone missing many years ago. The father of the household was a scientist trying to obtain eternal life. Yamawaro stepped in as their son. Ms. Ashiya accepted him with no worry. Mr. Ashiya, knowing that Yamawaro was obviously not human, used Yamawaro for his "Caterpillar fungus" experiments which still manifests in him till this day. He stated it was "to extend his wife's life". After learning of this, Ms. Ashiya shooed Yamawaro away, hoping to spare him from the parasitic experiments at the cost of her own life. She contacted Hell Correspondence to gain revenge on her husband calling it "Hikaru's vengeance". Despite Yamawaro's begging, she pulled the string. Yamawaro watched as the Ashiya mansion swirled away into a cloud of dust. Ms. Ashiya along with it, clutching what seems to be a young boy. This was a key experience to Yamawaro. After Yuzuki becomes Hell Girl, he and Kikuri simply walk away. He is not seen again until The God of Hell possesses Kikuri. After this happens, he returns and helps save Yuzuki from the grasp of The God of Hell by using a powerful supernatural blast. He comes to the aid of Ai again at the end of the third season.
