Tokyo is abuzz with persocoms – humanoid computers that are virtually perfect. The socially and technologically inept Hideki is dying to get his hands on one. When he finds Chii abandoned in the trash, she’s cuter than any current model he’s ever seen before. But when he gets her home and turns her on, she has no data and only a single learning program installed. While Hideki puts his whole heart into teaching Chii the ins and outs of humanity, a mystery unfolds as a dark secret within her awakens.In the future, personal computers have developed into “Persocoms”, mobile computers that look like human beings. Hideki Motosuwa, a prep school student, desperately wants to buy a Persocon but cannot afford to. One day he finds a Persocom that has been thrown away and decides to keep it. When he turns on the Persocom, all she can say is “Chi” so he decides to name her that. After a while it starts to become apparent that Chi is more than an average Persocom. Having much better performance, it seems that Chi might be a “Chobit”, a type of advanced Persocom rumored to have independent thought.