The Animatrix, Rakuen Tsuihou Recommendations
+ A new virtual world created inside network, which allows people to perform normal activities like in the real world. But an incident began to disrupt the peace of this new utopia.
+ MC originally live inside this "virtual world" but decided to leaving because she/he know that world is not real (Animatrix Episode 4)
+ Also we can see how relationship between human & robot can be made (Animatrix Episode 9)