I have a martial arts system in the city

Introduction: The collision of martial arts and modern weapons can the flesh really resist bullets?What kind of sparks will pop up between the mysterious system and a fresh graduate?The movie version is "fast within seven steps, and fast with a gun outside seven steps." Chen Xing's version is "not as fast as me!" (will incorporate a little martial arts elements and extremes, non-traditional martial arts) (slow heat type)