Godchild is by Kaori Yuki. It is a manga, or comic book. It has a deep, dark overtone, and the begining stories are based on nursery rhymes. It it very creative telling.

The main plot is about a young earl named Cain Haregraves. His father says he is the cursed son of God, because of his name. He has a half-sister named Mary Weather, and a man-servant named Riffiel who has a secret past (whis is revealed in a chapter). Also his older brother Jizibel who is right hand man to Cain's father. Cain is trying to kill his father and his secret corp. Deliah, who is trying to revive Cain's dead mother....