Claude and I are mates damn it!
How can you guys not see the wedding ring when the camera focused on it for so bloody long? WE ARE NOT BROTHER AND SISTER!!!
Hannah Annafellows is the maid of Earl Alois Trancy. She is a demon as are all of the servants of the Trancy estate. Her brother, Claude Faustus, is the butler in contract with Alois. There is a set of triplets, Thompson, Cantebury, and Timber that also work there.
Hannah makes a contract with a young boy named Luka Maken. According to demon contracts, they must devour the soul of their master once their wish has been fulfilled. When Luka thanks her for fulfilling his wish and destroying the village like his older brother wanted she becomes attached to Luka. She didn't understand why a person whom she was about to devour would thank her, and she becomes attached to Luka and keeps his soul inside of her protecting him.
Alois is actually Jim Maken, the older brother of Luka. Later, Hannah tricks both Claude Faustus and Sebastian Michaelis into a race for Ciel Phantomhive's soul. While they are in the maze she makes a contract with Alois Trancy who was currently residing in Ciel's body.
Outwardly, you appear poised and elegant, but within you lies a twisted, sadistic mind. Any way you can pry into a person's deepest fears and greatest desires, you'll take it. You seem patient yet strict with your allies (who are inferiors to you, of course), but when it comes to your enemies... you show no mercy.