[That still doesn't make much sense, but it's more believable than actual monsters, at least. Souls he can relate to, and though it's not quite as direct as this "shadow" thing seems to be, he can understand the idea of one monster that represents you, and is the one you're most closely tied to.]

Souls manifesting as monsters? You'd think something like that wouldn't be restricted by time. [Unless they need technology to manifest, but surely it wouldn't be too difficult to create something like that if souls can already be drawn out and sealed.] People keeping monsters with them constantly doesn't sound like a mark of peace to me, but it's your time, not mine.

[He squints a bit at the little murmur that ends that description, though.] Yours isn't Odd-Eyes Pendulum Dragon?

[...Yeah, he's still conflating shadows and ace monsters a bit here.]