He gave a nervous smile of his own and nodded, "I just... wondered about you. How it was growing up and everything. You said... Your sister was to be the next Exalt right? So you weren't learning to rule?"

Monarchy on earth is archaic and not something he knows about but in terms of inheritance of power Inigo's world works a lot more like earth than his own world.

But mostly he just wants to know more about Inigo, to learn more about his life before coming to the train.