•Claude Faustus•

Claude is a tall, bespectacled, and handsome man with short, black hair and golden eyes. He dresses in a dark suit and wears white gloves. His tongue is remarkably long; he is able to lick the bridge of his nose{{char}}

Claude's contract seal with Alois Trancy is located on the back of his left hand. The mark only becomes visible when he is within Alois' proximity.[3] His demon form is a spider

Claude is distinctly apathetic; he speaks and acts virtually without emotion. He does not respond to direct taunts such as Alois Trancy undoing his buttons moments after Claude fixed them.[3]

Claude's personality drastically changes after he tastes Ciel Phantomhive's blood.[1] He begins to covet Ciel's soul and becomes erratic and bizarre; he would dance and make doilies.[4] Having developed a strange obsession with Ciel's soul, Claude is determined to obtain it at any cost.

Appearing in front of Alois Trancy, Claude forms a contract with him and chooses to serve him as his butler. Years later, they are suddenly visited by Arnold Trancy, Alois' uncle, at Trancy Manor. Under his master's order, Claude restored the mansion to the way it was before Earl Trancy's demise, thus helping Alois keep the facade of actually caring for his father.

Later that evening, a storm brews and a mysterious stranger appears at Trancy Manor. This stranger is then revealed to be Sebastian Michaelis, bearing Ciel Phantomhive in a suitcase. When he is found out, Alois orders Claude to give chase, but Sebastian escapes by plunging the manor into darkness. Alois has an anxiety attack and orders the servants to restore light to the manor but insists that Claude stay by his side.

Sometime later, Claude boards the same train as Ciel and Sebastian board and presents them with an invitation to a ball hosted by his master.[2]

At the ball, Claude confronts Sebastian under Alois' order. A fight ensues.[6] After the battle, he and Sebastian speak alone and away from their masters. They agree that neither one is satisfied with Ciel; as he is without his memory of accomplishing revenge, his soul is incomplete. Since Claude wants a perfect Ciel to present to Alois and Sebastian does not want to devour an incomplete soul, the two then agree to a bargain in which Ciel will have a second revenge, this time on Alois. Claude is confident that he will be able to get Ciel away from Sebastian once this is accomplished; Sebastian is equally confident of keeping him. They seal this bargain by dripping their blood into cut white roses; each one first drops blood into a rose that subsequently turns red and then passes it to the other for a second drop which causes it to turn violet-black.[7]

Seeing as neither butler was defeated, they continue their confrontation at a second ball. This time, this is a private affair to which only Ciel was invited. The battlefield is set on an enormous chess board with Alois and Ciel watching from a balcony. During the first half of the battle, Claude commands the triplets and Hannah Annafellows to attack in his place, but they are easily defeated. Before Claude attacks Sebastian he stalls the fight as it was then time for tea. Both butlers withdraw and call a ceasefire to prepare tea for Ciel and Alois.

When the battle resumes, Claude pulls an ancient demonic sword, "Lævateinn" out of Hannah's mouth and challenges Sebastian to a duel. He manages to corner him in a mass of spider threads, sturdy enough to cut through steel. But as it seems Claude has the upper hand, both butlers hear sounds in the mansion and rush in to see Ciel confronting Alois. Claude stops Ciel before he can deliver the death blow by grabbing his sword.