With his perception, Luis easily located all the monsters in the area. He also found a grey smaller-sized Veno Bat, which was probably the said C-Rank monster of this Zone. However, he could feel it. That monster's strength was not enough to threaten him. He was certain that he and Cobert could deal with it just fine by revealing a little more strength than usual.
Rather, he was much more interested in the trap prepared by Kress and the person behind him. Unfortunately, he couldn't find anything out of the ordinary through his perception. So, he could only wait for the right time.
By doing so, he was by no means being reckless. Instead, he had ample countermeasures to deal with most difficulties. If worse comes to worst, he could just reveal his Space element and hide inside the Pocket Space.