The orphan Ciel lives in the slums of the City Eventale, struggling to survive.
Through a chain of numerous events, she meets the shadow "Night," who forms a bond with her in order to save both of their lives.
Night then tells her the truth about the world and how the war of the great gods led to the imbalance of the worlds.
Ciel then decides to kill the remaining gods and take their place.
What she does not know is that a god has been watching her.