Hotori: Tada Saiwai wo Koinegau
Genres: Drama, Sci-Fi
Type: Special, Episodes: 1
Aired: Aug 28, 2005
Studio: Sunrise
Source: Unknown
Rating: PG-13 - Teens 13 or older
Synopsis:
At the Personality Plant, robots are being built and slowly outfitted with the artificial memories of real people. Suzu is one such robot, being made to replace the young boy a family has lost. By chance, he meets Hotori, a young girl suffering from progressive memory loss. The two children become friends and attempt to define themselves in the light of their changing memories.

(Source: ANN)