Apocalypse Bringer Mynoghra: World Conquest Starts with the Civilization of Ruin, Vol.4

Truly Evil Gods Don’t Roll Dice!
Mynoghra has put an end to the Demon Lord’s Army of RPG monsters for good, but not without great sacrifice. Determined to regain what he’s lost, Takuto starts strengthening his empire with the gold coins obtained from the last battle as his first step toward reaching an Ascension Victory. But his efforts are hindered by the appearance of new enemy forces from yet another game genre—tabletop role-playing games!
How will Takuto’s 4x forces handle the intricate rules of TRPGs? And who is the mysterious Game Master lurking in the shadows?