I'll Add Some Cultivation in the City

Delivery boy Lin Fan accidentally got a mysterious system that can digitize all behaviors and add points. Delivering food increases [Speed], fighting increases [Strength], and even breathing increases [Vitality]! While others were still practicing hard, he was already using the system to silently become a god. However, as he gradually became stronger, a vast and highly martial world hidden under the modern city slowly revealed its mysterious corner to him...