Akane Sawai is a hikikomori who stays home due to her emotional problems piling up. Her form master, Yoshiki Fukasawa comes to her every day to knock on her room's door and try to convince her to come to school again, but she never even talks to him because she finds him irritating. Akane has a chat-friend called "Cheppo" who understands her and with whom she, under the name "Anemone", can talk about everything, including a beautiful garden and house "Cheppo" saw, unlike with the teacher. "Cheppo" tries to explain Akane that the teacher is in a tight spot too, maybe he is tired as well. Still, Akane writes the teacher's name into the Hell Correspondence. Shibata Hajime interviews the teacher and kids in his class about the Hell Correspondence, and Fukasawa turns out to be kind, almost too soft since the kids sometimes ignore him.
After an evening conversation with Fukasawa, Akane says the teacher only comes to her because having a hikikomori in his class makes him look bad, to which the teacher snaps at her to get over herself, people have their own problems and not everything revolves around her. He apologises immediately. The next day, however, Akane goes back to school.
The classmates are talking behind Akane's back about how she should have stayed at home, but the teacher is pleasantly surprised to have her back. Akane writes a happy message to "Cheppo" when the teacher was called over by the principal, but the teacher's phone is the one ringing. She confronts the teacher, accusing him of having known who "Anemone" was all along, which the teacher explains was not the case. She believes him.
They go to the beautiful house "Cheppo" showed her, and Akane admits she wrote his name into the Hell Correspondence, showing him Wanyuudo's straw doll. Fukasawa says he actually wouldn't mind being sent to Hell because his life is dull and meaningless. Akane waits for a couple of days, contemplating what to do. She sees the teacher being lectured about spending so much time with the worst student and ex-hikikomori of his class and being made fun of by the kids, so in the end, she does untie the thread on the doll.
Fukasawa wakes up in Ai's boat, asking her if he really is going to Hell. She explains to him what he did to Akane, and shows him Akane standing in the garden and asking the teacher to wait for her down there. Hajime goes to the school again, only to find the hard-working teacher has gone missing. Meanwhile, Ai asks her grandmother if it is all right for Hell to be a place people willingly chose, like Heaven.
This episode contains examples of:
- Driven to Suicide: Fukasawa agrees to be sent to Hell because he has nothing left to live for.
- Hell Seeker: Fukusawa. The fact that he is one throws Ai for a loop.
- Hikikomori: Akane is one. The plot is kicked off by her friends and teacher trying to get her out of this.
- Infernal Paradise: Discussed by Ai and her grandmother, which suggests that Fukasawa saw Hell that way. Ai's grandmother says it doesn't matter how people see Hell as Ai has to ferry them there anyway.
- My God, What Have I Done?: Fukusawa at the end, when Ai told him that Akane really lost one of the few people who encouraged her out of her shell.
- "The Reason You Suck" Speech: Ai gives one to Fukusawa for causing Akane to sell her soul."I suppose you were too wrapped up in your own problems. Did you think the trip to Hell would be cheap?
