Demon King!
A symbol of terror and evil! Synonymous with slaughter and death! Yet the True Demon Kingdom has welcomed the least Demon King-like Demon King in history!
"Your Majesty, please sign this document, but be careful not to put your hands where they don't belong."
"Lord Yalin, the human army is attacking, but I will protect you with my life!"
"Ugh! Stay away! You're a Demon King! I hate you the most!"
Good grief, what is all this? I'm just an ordinary person who wants to spend every day lazing around, living off the land until I die! Why did I have to become the future husband of a demon princess, the next Demon King, and take on the arduous mission of resurrecting my mother-in-law?
At least being the Demon King comes with perks: I got a Demon King development System. But wait... What's this about going to other worlds to complete conquest missions?