[Hikari crosses his arms, as he considers the question.]

Back home, there are many creatures like him, though we call them Caits. They are rather elusive, well known for running away with all manner of coins and trinkets. If he or his late captain are anything like them, then perhaps a jewel of some kind?

[He's entirely serious and definitely does not realize that Akechi is probably thinking about the kinds of things normal not for money and XP farming cats treasure.]