My Dear Marie (ぼくのマリー Boku no Marie) is a three-episode original video animation based on the manga series written and illustrated by Sakura Takeuchi. It was produced by Studio Pierrot and was released on March 6, 1996.
Synopsis
Hiroshi Karigari is a college student who has secretly built an android modeled after a tennis club member he is in love with named Marie. Introduced as Hiroshi's sister, Marie Karigari is a sentient robot who feels a deep affection for her creator. Both have a hard time trying to conceal her true identity in order to keep their current peaceful lifestyle.