With Hideki broke, Chii decides that she wants to find a job to get money to give to Hideki. Hideki has little objection, but stipulates that Chii must find a "good job" to work at. Unfortunately for Chii, someone with a very bad job for Chii, finds her while she's out and tells her the job he has on offer is a "very good job."

Hideki is scared of a room in the apartment because of a horror story he heard at Minoru's house when he was asking about the internet through Minoru's custom-made Persocom Yuzuki. He becomes paranoid thinking about the story and, believing that his apartment building is haunted, has several self-induced hallucinations. The apartment number in the story is 104, as 4, or shi. "Shi" is the Japanese word for Four (四) and Death (死), and because of this, the number four is unlucky in Japan. According to the story, a woman who was hoping to rendezvous with her lover was killed in that room. Hideki and Chi along with Shinbo, Minoru and Yuzuki decide to investigate. At the end, Hideki and Chi discover that it is all a misunderstanding.

Hideki and Chi help Shinbo move out of the apartment to live with Ms. Shimizu (who is now married to him). Then they arrive at Minoru's house, where he is trying to find information on Chobits. Minoru, who has not been sleeping enough, passes out, and Yuzuki (Minoru's custom-made Persocom) decides to try to hack the Chobits database herself.