The Psycho Demon King and the Wasted Hero

As the Demon King of the First World, Peng Pastin Leshan expressed panic. Three hundred years after coming to this different world, the prophecy imprinted in his soul told him that... His end seemed to be approaching? ! But it happens that the humans in the first world are still sending brave men (blind dates) to the Demon King's Castle to disrupt the Demon King's plan to survive! Wait, something doesn't seem right about the brave man (blind date) this time. His identity seems to be unusual? ! There are stronger and more awesome demon kings and brave men in the second world. They all seem to be eyeing this demon king? ! There is even a demon king from the third world who covets this demon king... This Demon King is really busy, and my heart is so tired. I really want to stay in the Demon King's City, be a quiet handsome man, read comics, drink happy water, and spend my days leisurely.