The Demon King Overrun by Heroes Manhwa

After diligently following the “demon king’s standards,” I ended up getting killed by the heroes.

What, my tower and I are a custom-made hunting ground for heroes now?

With this chance at life regained through regression, to hell with the damn demon king’s standards!

This is the story of surviving as the hard-headed(?) demon king, Berje!
마왕인데 용사가 너무 많음, I’m the Demon King, but T Are Too Many Heroes