In this chapter, we're introduced to a new character named Sin-Jin-Soo. He's the kind of guy who's like, "dude, I'm going to teach you how to fight like a real human being" . So far, he's been pretty good at it, but he hasn't yet mastered the art of fighting like a human being . We're not exactly sure what Sin is talking about, but it's pretty clear that Sin is trying to teach the guy how to beat the heck out of his opponent.