Hideki has moved to the city from the country to enrol in Prep School in order to pass the college entrance exam. In the city, Hideki is amazed by the mobile computer units called Persocoms that almost everyone has. If only they weren't so expensive! Walking one night he comes across a cute persocon just lying in the trash and decides he should do his part for the environment and recycle her as his own.

Hideki wakes up to discover he really now owns a Persocom~!

Shinbo comes over and realizes what Hideki was hiding the other night. He tries (stress tries) to help Hideki by seeing if Chii has any DATA or PCN numbers. When he can't find any (After Sumomo has crashed from trying) he sends Hideki and Chii to Minorus house. Minoru too is unsuccesful, but Yuzuki has given info that Chii has DATA just hidden.

Minoru talks about a legendary Perscom series called "Chobits."

As they go home Minoru gives Hideki some advice about Chii.

Things start to look a little better for Hideki as he tries to teach Chii some words and expressions. Although he’s in need of a job, Hideki gets to start cram school today, and it turns out he’s got a very attractive teacher, Ms. Shimizu. After making the rounds for job hunting, Hideki manages to land a job from a wet accident, meeting another cute girl, Yumi Ohmura, in the process.

剛開始只會說「唧」這個字的少女型電腦「小唧」，她與本須和共同生活一段時間後，也開始學會了人類的語言。但是，有一件事讓本須和感到很棘手。雖然管理員的日比谷給了小唧許多衣服，但是小唧的內褲卻還沒有著落。眼看著本須和因為害羞而不敢去買小唧的內褲，於是新保便提議讓他的攜帶式電腦「絲茉茉」帶著小唧一起去買。 於是小唧便跟隨著絲茉茉，第一次外出購物……

Hideki's first academic hurdle comes in the form of an impending mock test. This spurs some serious studying, hindered only by the lack of a Japanese-English dictionary. With the help of a visit to the bookstore Hideki gets rather side tracked and decides to teach Chii to read, using a picture book she was seemingly drawn to. With a visit (and some help) from Shinbo Hideki gets back to the books, leaving Chii to finish reading her book by herself. When Hideki finds Chii later she is emitting light and floating in the air! A Check from Shinbo finds nothing wrong with Chii, leaving Hideki with more study and less time, but at least Chii is around to motivate him.

Chii isn't feeling like herself and basically collapses in Hideki's apartment. He gets an adapter from Shinbo but unfortunately can't recharge Chii due to the fact that he never paid his electric bill.

He struggles to find a building to recharge Chii but falls when climbing a wall to a building which is open til 2am. Luckily for him Ms. Hibiya saw them froma cab window and allowed Hideki to charge Chii from her place. Shinbo arrives and informs Hideki and Ms. Hibiya of how many watts are being used to recharge Chii. Hideki exclaims that he will pay her back for both the electricity used and his rent even if it kills him.

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."

After Chii's reboot button is pushed, she escapes the 'peep show' room and is jumping around the city disabling all persocoms. She finally exhausts herself and Hideki catches her before she falls off a railing. Chii gets a job at a bakery having a five year anniversary thanks to Hideki. The manager offers Chii a permanent job which she accepts only if Hideki allows it. She trys to give Hideki her payment but he refuses telling her that since she worked and earned it, it belongs to her and for her to buy her favorite things (whatever they may be)

Sumomo is running low on memory space, so she asks her owner, Shinbo, what he wants to erase. He starts at Sumomo's "congratulations on moving in" dance for Hideki, and then recalls several main events and funny incidents that have occurred in the series thus far. This episode serves mainly as a recap of the storyline.

小唧拿到了她到外面第一次打工所賺的薪水。雖然本須和對小唧說她可以去買自己喜歡的東西，但是小唧還是想送本須和禮物，於是她到書局買了限制級的寫真集。因為小唧想到：「秀樹，他說他想要新的菜色」。剛好在此時，本須和從新保口中得知電腦也需要洗澡這件事。但是小唧自己不知道怎麼洗澡，而且也沒有學習軟體可用。最後本須和只能親自向小唧示範「洗澡的方法」……

裕美突然邀請本須和去看電影，本須和雖感到驚訝但仍高興的答應了。「這難道就是…所謂的約會嗎！」生平第一次約會的本須和，他把「約會」的意思對小唧解釋為「互相抱持好感的兩人一起快樂的玩」。當小唧一個人閱讀著上次買回來的書時，突然聽到被某人呼喚的聲音。「誰？」「把眼睛閉起來，我將影像傳送給妳。」靜靜的閉上眼睛的小唧，看到的卻是個長得跟自己一模一樣的臉孔。

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.

Yumi's dad loans Hideki his DVD player, and tells him of a DVD sale coming up. Hoping to get some mature videos, Hideki embarrassingly meets Minoru and sis instead, who offer him a fantasy multiplayer Internet game (Brave Quest Online) that persocoms can play too. Hideki thinks this would be fun to play with Chii. But Hideki knows nothing about hooking up to the internet! Fortunately Shimbo helps him out. Now everyone's logged on, except for Chii; she's missing (in the game)! Oh no, what's Hideki going to do now? Blindly run through the game looking for her of course!

夏天到了。對於準備重考大學的本須和來說，這是個很重要的季節。本須和這一陣子因為學校成績一直無法提昇而感到煩惱。因為得到了清水老師的鼓勵，使得本須和發誓要在這個夏天好好用功…。但是卻因為新保的提議，本須和跟著大家來到了稔的別墅。「我的模擬考成績明明是D，竟然還跑到這裡來…」此時站在海邊感到困惑的本須和，眼前看到的卻是穿著泳裝的裕美、清水老師跟管理員。同時身邊的小唧也以天真的表情抱著自己…雖然感到矛盾，但本須和還是好好的享受了這段夏日時光。

On a hot summer night, Ms. Shimizu pays a surprise visit to Hideki and Chii, and wants to STAY OVER(!!) Is Hideki going to have his first night of passion, or is there some other reason?

Hideki discovered that Shinbo and Ms. Shimizu on the street hugging each other. The next day, Shinbo and Ms. Shimizu aren't at class. And then Sumomo is left in Hideki's care! Could something be up with those two? And isn't Ms. Shimizu married?

Hideki's in trouble grade-wise, so Ms. Shimizu advises he prepare for a practice exam. Hideki gets ready for studying, but loses his wallet. Chii tries to help him out by cooking for him.

Minoru and Yuzuki tried to find what Chi really is and search for clues about the creator of the Chobits picture. Yuzuki reviews with Minoru what they know about Chi, and the only thing they can conclude with the information they have is that Chi is not a normal Persocom. This episode is another recap of the events that have happened so far in the series.

Ms. Hibiya is cleaning the apartments, and Hideki and Chi offer to help her. When Hideki goes to clean the electronics room, Sumomo accidentally falls onto some wires and gets electrocuted. Ms Hibiya then reveals that she used to build Persocoms, and she repairs Sumomo.

本須和一如往常到奇洛如接小唧回家，小唧端出了她自己做的蛋糕給本須和吃。當本須和對裕美提起這件事時，她卻露出了很寂寞的表情。她告訴本須和，有些人喜歡無所不能的電腦甚過於人類。「這麼一來，人就無法待在人的身邊了……」在聽到了裕美的這番話後，本須和整個人頓時變得無精打采。小唧因為看到本須和沒有精神而將本須和抱在懷中想要安慰他。「已經漸漸地無法將小唧只當作是普通的電腦看待了…」此時，到書店去打算看上次那本畫冊續集的小唧，突然從背後遭到突襲…。

Chi is still in the hands of her abductor as Hideki searches for her. After he talks to Mr. Ueda about Chi missing work, they decide to search for Chi together, and Mr. Ueda talks about his marriage to his last Persocom.

Chi is still missing, and Hideki is enlisting as much help as he can to find her. A strange e-mail image gets sent to him and Shinbo from an untraceable email address. It turns out that this is a map for the house of Chi's abductor, Dragonfly, and he is carrying out research to find out what Chi is.

Hideki takes Chi to work. There, Chi changes into the wrong uniform. Ueda tells her it's the wrong one, but before she goes to change, Yumi sees her wearing it from outside the shop and runs away crying. As it turns out, Yumi used to work at the store, and that had been her uniform. When Yumi was working for Mr. Ueda, the two had started falling in love, but when Yumi learned about Mr. Ueda's previous marriage to a Persocom, she concluded that he believed Persocoms to be superior to humans, so she quit her job at his bakery and broke off the relationship.

Ms. Hibiya secretly leaves Chi the fourth book in the "A City With No People" series. Hideki meets with Shinbo and shares his feelings for Chi. Ms. Hibiya reveals to Hideki that her husband was the one to create Chi and the other mysterious girl, Freya. She tells Hideki that Chi used to be called Elda and, like her sister, was created to be loved and fall in love with others. Chi then tells Hideki that she loves him.

本須和喜歡上了身為電腦的小唧。正當他為此感到煩惱時，卻從日比谷口中得知了小唧和「Chobits」的秘密， 儘管如此，本須和在小唧面前仍舊什麼也說不出口。沒想到小唧卻在此時告訴本須和：「小唧喜歡秀樹」，同時也追問他：「秀樹…你是只屬於我的人嗎？」。戴特與吉瑪為了阻止小唧再次發動力量而現身，此時，本須和所採取的行動是……