What a Bountiful Harvest, Demon Lord!

What a Bountiful Harvest, Demon Lord! Manhwa 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. 풍작이에요, 마왕님!