Chi Wears and Takes Off
Hideki and Chii visit Tirol, and find a pensive Manager Ueda. Chii puts on an old uniform, and Hideki notices Yumi looking from outside, running away and crying. Hideki chases her down. Yumi tells Hideki the story of her relationship with Ueda, while Chii consoles with Ueda on his feelings in the situation.
Aired 11/09/2002EP 24 - Chi Wears and Takes Off

Chobits
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 Persocom 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 "Chii" so he decides to name her that. After a while it starts to become apparent that Chii is more than an average Persocom. Having much better performance, it seems that Chii might be a "Chobit", a type of advanced Persocom rumored to have independent thought.
(Source: Anime News Network)