"Rule fields" appear randomly around the world - the areas covered by the fields will turn into copies of strange rules. The "residents" inside act according to invisible rules, and those who violate the rules will be wiped out. The human government established a "Rules Management Bureau" and selected "analysers" to enter the field to crack the rules.
But the protagonist Lin Ye discovers that what he has awakened is not his analytical ability, but the "Martial Arts Conferred God System"** - As long as you fight within the rules, you can gain martial arts experience, from refining the body, channeling the meridians, concentrating the mind, and transforming the body... All the way through. Others are cautious in the rules, but he punches and kicks in the strange stories.