Order has collapsed, and rules have polluted the world. Chen Shou, an anonymous former ace agent, is now just an inconspicuous security guard in a high-end community. When countless strong men died due to weird "rules", he became the only "understanding person" in this purgatory because of the manual "Strange Tales of Doomsday Survival Rules" that automatically appeared in his mind. It was his original humble wish to guard the gate and feed the survivors of a building. It wasn't until his former partner who had been "killed" came for revenge with scars and hatred all over his body that his identity and the truth of the world were forced to be revealed layer by layer in blood and fire. This is a survival epic that pits rules against rules to achieve two-way redemption in a desperate situation, from guarding a door to guarding the last civilization.
