Overlord manga volume 18 features story by Kugane Maruyama and Satoshi Oshio plus art by Hugin Miyama and So-Bin.

To gain leverage in negotiations with Ainz Ooal Gown, Barbro, the first prince of the Re-Estize Kingdom attacks Carne Village. Then suddenly, in the Katze Plains, Ganzef and the others lead the army of the King of Darkness in preparing for battle.