Hand Maid Sakura

Saotome Kazuya is a computer whiz. One day his friend Nanbara, threatens him with a computer virus. Trying to stop the virus, Kazuya ends up making a special order. Sakura is a cyberdoll that arrives at his door a few minutes later and she is 1/6th the size of a normal person, which makes for many awkward situations until the day she opened a strange book and let dozens of powerful magic cards loose on the world. Keroberos, the Guardian of the Clow Cards, informs Sakura that it is now her responsibility to find and capture the freed cards.

The anime poster.