HELP I DINDT UNDERSTAND THE CHAPTER

So you see how the guy who got his head cut off wasn't bleeding and can still talk? That means that his body wasn't real, and it was the "avatar" skill that belongs to the writer we encountered some chapters ago(the one that wanted YJH to kill KDJ). KDJ caught on that this guy was the writer, which is why he kept on talking about plagarism. KDJ was basically letting the writer know that hes aware of his real identity(when they first met, KDJ accused the writer of being a plagiarist.)