After seeing the golden chest Evan retreated back.
Before taking away the golden chest he decided to recover his mana. If without recovering his mana he tries to take the golden chest, and that ox wakes up he will have no chance of escaping.
Without enough mana, he will not be able to pass through the barrier that is covering the cave.
After retreating back from the open area, Evan sat down and started to recover his mana.
The people In the room who were watching Evan nodded their heads when they saw Evan didn't fight against that ox.
From what they saw till now, they were sure that Evan is not a match for a B rank monster.
If he tried to fight against it, there is a very high chance of him dying.
"It is good he knows his limits and didn't act rashly," Edward said while looking at the screen.