At the end of the series, Chi finds the person "just for her", and her forgotten identity is revealed, causing Hideki to confront his feelings.

Chi is voiced by Rie Tanaka in the anime and Michelle Ruff in its English dub (credited as Georgette Rose).

In an interview when describing Chi's character, Clamp member Satsuki Igarashi stated "Lately we've been saying that the easiest to understand is Chii from 'Chobits.'

[4] The name "Chobi", came from the name of a cat at the place of Nekoi's former employment, which the group made into "Chobits", as the characters Elda and Freya were twins.

[9][10] Hideki's neighbor Shinbo and computer prodigy Minoru determine that Chi is no ordinary persocom, and may be a legendary "Chobit", possessing synthetic intelligence.

[18] Before losing her own memories as a result of her actions, Elda requested to be left alone outside, away from her family, so that she would not have the possibility of suffering the same fate as her sister.

[19] Her father then gifted her with a program which will delete the recognition programs of all persocoms if she fails to find her soulmate,[20] while her mother authored the children's book series A City with No People, a story within a story about the relationships between persocoms and people, to help Chi in her quest.

[21] Towards the end of the series, Zima and Dita, persocom agents for the Japanese government who know the outcome of Chi's special program, arrive at Hideki's apartment.

[23] Freya confirms that while Chi and herself are indeed the legendary Chobits, they possess neither sentience nor emotions, but rely on software programs just like every persocom.

[24] Hideki declines her offer to tell him about Chi's special ability, and Freya vanishes after imploring him to take care of her sister.

These differences include the events in the ending, other things such as describing Elda's memory loss, and her special program.

His wish was that if Chi were able to find someone who loved her in return, all his children would be able to share in this happiness by being able to feel emotions the way humans do.

Under the impression that something terrible will happen if her program executes successfully, they send two persocoms, Zima and Dita, to destroy her.

She regains control of her body and completes her program, giving every persocom the ability to love then embraces Hideki.

In this crossover series, she is created by Fai D. Flowright as a guardian of the pool where his brother's body, and eventually the sealed Ashura-ou are kept.

Nanase Ohkawa of Clamp stated: "We got a lot of letters saying that Chii-chan is cute"[2] THEM Anime Reviews critiqued Chi for being a main character but "not having a personality" in the series.

[33] Tony Chen from Anime News Network said that "The way Clamp executes the development of Chi's character, growing her from what is basically the mental equivalent of a five-year-old child to a much more intelligent and complex being, is not only clever but also very cute.