C129 proglacial aversion

Yan Yun was serious when practising medicine, because his medical skills were all used to save his life when he was in danger. Of course, he also had another function: He could kill people, but he rarely used it.

Just as Chu Yunxi had said, Yan Yun's medical techniques were simple and effective, but during the treatment, he could not use any strength.

The old man had no enmity with him