Are Doctors Weak? I'll Make You Critically Ill with One Punch!

In the 100th year of the revival of spiritual energy, external demons invaded and the human race was wiped out. At the last moment when Wu Xunfeng closed his eyes, he returned to the time when he was 15 years old. In this life, Wu Xunfeng wants to change his destiny and save the human race from the hands of external demons. For this reason, Wu Xunfeng gave up the swordsmanship he had practiced for many years and accepted the inheritance Since then, a very strange professional has appeared among the human race. "Haha, doctors are weak? I'll beat you to death with one punch, and you will be in decline!"