Coffin Defiler

Coffin, a grassland nation covered by gray clouds. One day, a massive military force accompanied by a creature called a "God" invaded a kingdom that worships dragons soaring through the sky. A female swordmaster wielding mysterious weapons, a hero harboring an abnormal being within their body, silent soldiers. With overwhelming military might, they subjugated the kingdom—their objective filled with evil beyond the imagination of Coffin's people. The surviving heroes of Coffin stand against those who seek to destroy their nation with inhuman power. A war chronicle fantasy centered around the sorcery of a man once called the Demon King. * June 8, 2018: Section 0 of "The Coffin's Demon King" was published by Hero Bunko as "The Demon King's Executioner" * March 30, 2016: Published by Hero Bunko