[ He considers it for a moment, but... Here, he doesn't see much harm in telling the truth. If anything, it'll make his odd knowledge in dark areas make more sense. ]

The Phantomhives have served the royal family for generations in a capacity not too different from this. We are the Queen's Watchdogs who sniff out those who distress the royal family and eradicate them. Those who violate the commandments of the underworld will be pursued and disappear. It is the job of the head of the Phantomhive family to head these pursuits, and that just so happens to be me.