Yang Yi killed Boxing King, not that Boxing King killed Yang Yi.
Logically speaking, Boxing King had an absolute advantage, so was it a miracle that Yang Yi survived?
This was no miracle.
Boxing King had strength and speed, as well as a powerful resistance to being hit.
Yang Yi only had a good brain to rely on.
If Boxing King and Yang Yi had come into conflict, instead of sending his newly-recruited underlings with knives to stab Yang Yi and had personally taken action, he could have finished off Yang Yi with just a few punches. But at that time, it was just a minor conflict, and of course, it wasn't yet time for Boxing King to step in.
If in the bathroom, Boxing King hadn't tried to sodomize Yang Yi, hadn't let his subordinates capture Yang Yi resulting in becoming completely off guard, but had approached alone and used his fists, then he could have crushed Yang Yi.
