Zhan Feng, a special forces soldier who once fought on the special front, accidentally died in the Kaitan dungeon and was reborn with all the memories of the past back to the first day when the rules came. Relying on his extraordinary tactical prowess and his extraordinary talent for logical deduction, he deduced flaws in the cracks of deadly rules and uncovered the traces of evil hidden behind the rules. He worked step by step and solved several mysterious crises that shrouded the city.