In this chapter, we learn that the hero of the previous chapter is wearing a special protective armor. He's at a level 7 of the "bone- forging realm" , and he's got a sword, a spirit weapon, and "immortal-class martial skills" . He has no way of breaking his opponent's defense, because he'll give his opponent all of his strength. This guy is so good that he nearly killed him with one strike. The guy is also wearing a mountain-drilling mouse , which means that he has a method for using the mouse to drill a tunnel. The three of them plan to use the tunnel to pump some diamond quick-sand into the spring, so that the mouse can use it to travel to the other side of the mountain.