[That particular joke goes flying right over Souji's head, and so he just smiles and nods pleasantly, firmly refraining from thinking about exactly how much he misses the former. Home is a long way away right now.

But... master, he says? Of course, he could be someone's servant - even with the very familiar way of talking about him, that's a possibility. But Souji's gaze darts down and, yes, there's a sword alright. And a gun too, apparently? Anyway, he can make an educated guess and has to ask:]

Does that mean you are someone's sword too, then? [A small laugh.] I'm sorry, maybe that is a rude question to ask so directly, but I hope you don't mind.