At first I thought she was Princess Sapphire from Princess Knight (Ribbon No Kishi), but she's actually from another Osamu Tezuka's manga that I don't actually know. (And can't read ze wiki page due to my lack of understanding of Japanese... Argh!)

Help would be extremely appreciated.

Yaketpatchi's Maria?

Added sex_doll tag. It's a story about a love doll possessed by the main character's ectoplasm.