Lin Mo, also known as Ah Che, is just an ordinary clerk guarding a 24-hour convenience store in the neon-lit city of Shanghai late at night - scanning QR codes and cashing out during the day, and dealing with drunken customers at night. His blood level is always stuck at 99 calories, and he can't even complete the introductory martial arts "Tempering Boxing".
Until a rainy night, a D-class alien beast "Shadow Rat" crashed into a convenience store. When he was about to die, the old ancestral watch on his wrist suddenly became hot, and he awakened the "Martial God System": Lin Mo's body can accommodate thousands of martial arts, and Ah Che's consciousness can predict the opponent's weaknesses.
As soon as he used the missing "Iron Shirt" to fight off the troublemaking martial arts disciples, he was targeted by the mysterious "Urban Supervision Department" and was accidentally involved in the secret war between the ancient martial arts family for the "spiritual drink".
Alien beasts are building their nests in convenience store warehouses, and masters are fighting on the top floors of office buildings. When ordinary people are rushing to buy discounted goods, he is using a code scanning gun to attack Xuanmen magic weapons.
When the lights at the checkout counter illuminated the blood-stained fists, Lin Mo and Ah Che stood side by side: "In this high-tech city, even the convenience store has to be guarded with fists!" Let's see how the two clerks started at the checkout counter and carved their own path to martial arts in the steel jungle!