What a Bountiful Harvest, Demon Lord!

Synopsis

A brief description of the manhwa What a Bountiful Harvest, Demon Lord! I've become the Demon Lord, the Final Boss in a game, but… If I invade the human world? I'll be slain by the Max-level Protagonist I raised. If I stop the invasion? I'll be devoured by my starving Demon Generals. …Therefore, the only answer is farming.