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.

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!

While Chi is on her way to work, she notices the third part of the book series "A City With No People" on the shelf of a bookstore. While she flips through the pages, she is grabbed from behind and is kidnapped. Hideki comes home from prep school and returns to find Chi missing.

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.