In the tenth year of the end of the world, the commander of the steel fortress "Ark" fought fiercely and ruled the last survivor base with absolute rationality. Until he encountered the most difficult enemy in the wilderness - the mercenary queen "Night Owl" during his mission to fight for the "Seed of Life", the hope of mankind. The mask fell, revealing the face of his first love who had long since "dead" as he had personally signed to give up the rescue ten years ago. Now, she is a hunter who comes for revenge, covered in thorns, powerful and eye-catching. And Li Zhan's cold and perfect world has since opened its first crack. When the corpse tide comes again, the doomsday conspiracy comes to light, and they are forced to hand over their backs to the person they hate the most. "Li Zhan, your optimal solution, who are you going to sacrifice this time?" "My algorithm failed. This time, I choose you."
