Coffin, a grassland country shrouded in gray clouds.

One day, an army accompanied by a colossal creature known as 'God' invaded the kingdom, which worships dragons soaring through the skies.

A female swordswoman wielding strange weapons, a hero harboring a monstrous entity within, and silent soldiers.

Their objective, after subjugating the kingdom with overwhelming force, was an evil beyond the wildest imagination of Coffin's people.

The surviving heroes of Coffin rise up against those who seek to destroy their nation with inhuman power.

A fantasy war epic centered around the magic of a man once known as the Demon King.

* June 8, 2018: The 'Coffin's Demon King 0' segment was published as a book by Hero Bunko under the title 'The Demon King's Executioner'.

* March 30, 2016: Published as a book by Hero Bunko.