[Once Jataro has found the horns himself, Nagisa pulls his hands back. You go, friend. You have fun with your bumps there. Enjoy that.]

Or a ram or a goat...any number of animals, really. Or maybe an oni, we are turning into monsters, after all. There's nothing that says they have to be horns belonging to an actual animal.

[He shifts from his squatting position to sit cross-legged on the floor.]

But there's no way to know right now. We'll have to wait until they break the skin to see what kind of horns they are.