Devero doesn't argue with him. He knows what Genjo's world is like. Nor does he argue when the Sanzo starts to lead the way, taking it as a given that the priest has some way to detect the presence of the monsters. Why wouldn't he?

He just nods, wraps one hand around the hilt of the sword he'd borrowed from Koumyou, and falls in behind Genjo.

He doesn't get more than a few steps before he hears a distant, terrified shriek-- coming, of course, from roughly the same direction as those fucks over there. He stops and looks over his shoulder, not that he can see anything from here.

"...Did you hear that?"