In the middle stage of breakthrough, there is an enemy attack!

The nearest mountain to the one beneath his feet was more than three hundred feet away.
However, Obsideus Skipper discovered that there was a man climbing shirtless on the almost vertical cliff!
There are two huge black stones tied around his waist!
The muscles all over the body are tense and bulging, and the blood vessels are visible.
His feet were shaking uncontrollably as they pressed against the cliff, and his body was covered with countless scratches.
But the other party's...