The Forbidden City (II): Exposed
Khan had completed skipped the commoner rank to get to the soldier rank, according to Nezha it wasn't completely unheard of, but it was somewhat rare. That particular jump in ranks was attributed to the fact that the demon code Khan had invested was from a very powerful demon, Nezha even expected Khan to have at least gained a few more levels within the soldier rank rather than stopping at one, but the more powerful and rare the spirit, the more resources needed for it's evolution.
But then again the fact that Khan had gotten stronger wasn't a bad thing, and he had also gotten new skills, that would go a long way in increasing his fighting prowess and by extension Alex's own abilities. The first and only skill Khan had been born with was (Wind coat) the skill was now level three, while the others were just level 1, within the world of the mantle everything about Khan and even Nezha and Ébié was presented in the form data.