Alice and the black rabbit

This is a black butler fanfiction with OCs. Constructive criticism accepted.
Alice lost her parents at an early age in a fire. Her older brother Louis then took care of her. They moved into a small village where they met Alois and Luca. Eventually they had to leave in order to find work. Then... Louis fell I'll and died. Leaving little Alice in her own. Until she summoned Louis (demon) to be her big brother. They lived normally for quite a while, but why hasn't he eaten her soul yet? Maybe He's gotten soft. Maybe he's eaten too many human souls and become human himself. Or maybe...