@The_DCG
It was stated and hinted through out the series that the new power was taking part of humanity with each level, and does things to help him detach. its also doing things like giving him pride, forcing him to kill when he didn't want to, recalling betrayal, forcing him to break away from his past self, and other such things. as the quote in one of the chapters "Those who hunt monsters must be wary, that they do not become monsters themselves."
It was stated and hinted through out the series that the new power was taking part of humanity with each level, and does things to help him detach. its also doing things like giving him pride, forcing him to kill when he didn't want to, recalling betrayal, forcing him to break away from his past self, and other such things. as the quote in one of the chapters "Those who hunt monsters must be wary, that they do not become monsters themselves."