In "Ma Doll", the player controls a young man named Kazuya. Little is known about his background and past, and it seems like his entire life is dedicated to women. But his relatively peaceful existence comes to end when one day he notices a strange girl in the crowd... a girl who looks and moves as if she were an artificial creature. From that moment on the hero is involved in a bizarre story, during which he will have to understand himself and the world surrounding him...