Chi Goes to the Ocean
Hideki and the entire gang are invited to hang out at Minoru's beach home for the weekend to study and to have a lot of fun. This is Chii's first time at the beach. But with Hideki not knowing how to swim, and with Chii going in the water, what's a guy to do?
Aired 03/07/2002EP 14 - Chi Goes to the Ocean

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)