Chobits Episode 20: Chi Disappears
Episode 20 of 26 of Chobits, aired August 14, 2002, 30 minutes. Available with English subtitles and dub where released.
Episode summary
At work, Hideki is challenged by something Yumi said about persocoms taking the place of relationships with real people. The next day, Hideki has to study late and tells Chii to walk to work by herself. As Chii walks to work, something happens, and when Hideki gets home later, Chii is nowhere to be found!