Going a little back in time, other experts didn't have such an easy time. They couldn't see the world of elements. After all, Luan's eyes were special. He wasn't the only member of the Sacred Eyes Race, but it wasn't like there were many of them to start with. One might turn a corner, and a Wonder Beast might be right there.
"Fuck this shit!" Sansara was running through the tower as fast as he could. The rooms, doors, and corridors flashed past his eyes as he didn't have time to pay attention to any of them. Black Locust was nowhere to be seen. Sansara and Black Locust were forced to separate after bumping into one of those Wonder Beasts. As for Peak Divinity Realm Devils, they followed another path some time ago under Black Locust and Sansara's orders.