In the wasteland of nuclear war, genetic modification and mechanical prosthetics are the mainstream. Luo Jiu guarded his ancestral martial arts hall, but no one cared about it. Until an out-of-control war mecha flattened half a block, he walked out of the martial arts hall, used Bengquan to shatter the mecha's atomic shield, and used Tai Chi to volley its main gun shell into an iron flower. The survivors looked at the signboard behind him that read "Strengthen the body and promote tradition" and fell into deep thought.