Limitations

Almost a month later, Ryu continued to practice the same basic stances. Other than to eat, he never stopped. Although his Qi Realm cultivation wasn't deep enough to go without sleep, his Mental Realm cultivation was, despite only have a half-foot into its first step. By relying on this, Ryu was able to stay awake for weeks at a time, something that shouldn't have been possible until he became a Qi Refinement expert.