Though Zaraki actually had let go of his opponent to let him drop backward or fall to the ground, he apparently was still within range of Tetsuya's fist as the man landed a powerful punch square against his chest. Despite Li Qiang's best intentions much of even the interior damage the punch could normally cause was still blocked by Zaraki's pure outer physical durability, a layer of defense which could not simply ignore. However the infamous Shinigami swordsman could feel the man's determination in the strike, clearly still far from falling despite the tremendous damage he had already sustained. This fact caused a small smile to form from Kenpachi's lips, an acknowledgement of the Sugiura's willpower and willingness to fight to the last. At the same time though, Zaraki was no fan of essentially committing suicide just to prove a point. To him it was far more important to leave alive and improve enough to grasp victory later.
Wanting to prove a point himself, Zaraki Kenpachi stayed standing still and within range of Li Qiang to allow the man to land all his following successive strikes against his torso. Every single punch would cause just as much damage to his own fists as he might have expected to cause to Zaraki, but unfortunately he didn't benefit from the sheer durability the Shinigami possessed. While all the attacks together may have caused some pain, Zaraki had long since mastered the ability to ignore it to the point of almost seeming to not even feel it in the first place. For this reason he didn't really care much about anything Li Qiang was able to do to his body, as not only would the Sugiura likely suffer from severe damage to his hands and wrists but Zaraki wanted to show him dying here would be a waste.
"Dying here doesn't get you an award, it doesn't get you shit. Go get stronger and then come back, you're not fun to fight anymore." With this challenge spoken aloud to Li Qiang, Zaraki rested his gigantic Zanpakuto against his right shoulder and turned to walk away from the bloodied man. Dealing a deathblow to someone barely strong enough to keep fighting took too much energy and was, above all things, boring to Zaraki Kenpachi. However if his foe would try continuing this fight, he would be entirely willing to cut him down.