In this short scene, we get a look at the fight that's just been going down between the two guards. We learn that the guards are fighting like their backs against the wall, and that the guy who's fighting the most is the one who gets hurt the most. The guy who gets the most hurt is the dude who gets killed the most, which is why he's called the "Master Let Leap" . He's also the guy that gets killed most often, because he gets killed by the most powerful guy in the world . This guy's got the skills to beat anyone, even the Master Let Leap , and he doesn't even need to kill anyone. He just needs to cut off one of the guards' heads and then he'll be able to do it again later on. That's why he calls the guy a "mule of pain" , because no one ever gets up from a wound like that, even if it's the one that kills the guy. The dude who got the most wounded is the guy with the head cut off , which means he gets to keep the head for a second time later on, after which he can do the same with the other guy. This is why the guy called the Master "Let Leap" is called "the Master" because he