[ He's lightly surprised, but he realizes his error quickly, since treating her like she has the context that he expects is an error, though it's one completely his own. Part of him thinks of that as a unique opportunity, since he could use his words cleverly to shape her perceptions to his advantage, but he also knows that's unwise. A single word against what he says and it would collapse, really. ]

Not exactly. My servitude as a butler is incidental. The contract is because he needed the power I can provide.

[ With words like that, it puts the contract in a more truthful light, since any pursuit of power didn't come without a cost. He felt that idea was universal enough that it would be understood, though he adds: ]

He pursues revenge against those who killed his family, but any more than that, I cannot say.