About the book: 2020 / A merciless army of death is approaching the villages of the Lizardmen. To save their tribes, to live with their beloved females, the lizardmen take up arms... Meanwhile, Ainz sends his army into battle for the sake of an “experiment”, entrusting command to the guardian of the fifth floor of Nazarick, the “Lord of the Ice River” Cocytus. A merciless world will appear before your eyes, where the strong devour the weak.