Yuki's physical body actually wasn't substantial. His limbs were originally prosthetic body parts designed for children, and he had already replaced some of his internal organs. After the incident with Lev, he had replaced most of the remaining organs. Just now, even his lungs had been swapped out.
To facilitate movement, Xiang Shan had also replaced Andy's limbs for him.
For Yuki, most of the muscles on his body were now superfluous.
A few blood-forming organs and an artificial heart pump and prosthetic lungs, sufficient for maintaining brain energy, were essentially enough. Also, there was a digestive and absorption system that was less than one-tenth the size of that of a Natural Person.
After the battery was replaced, Yuki had almost regained his ability to move. The strength of his limbs had nothing to do with his injuries.
