I am the Demon King of the Dungeon!

Ding! [Captain: Ujiusi Shousa has fallen!] [Adventurer Squad: Bloodstained Glory] [Overall Rating: C+] [Short Comment: A serious adventurer squad, but unfortunately they didn't even clear the third floor, offering little in terms of fear] [Fear Value +150] Demon King Arthas was very frustrated. As a transmigrator, he should have been able to fight heroes and kick gods, but instead, he was trapped in a dungeon by a "Monster Dungeon Unilateral Infringement Treaty," becoming a corporate slave for a hundred years. Managing monsters, balancing difficulty, handling employee complaints... the Lava Wyvern wanted a raise, the Goblin Chieftain created a paid VIP passage, and the Necromancer even created a points-based membership system for adventurers... He finally managed to sneak out for some fresh air under the pretext of "recruiting BOSSes," only to encounter adventurers who treated the Demon King like a newbie, dragging Arthas to conquer their own dungeon. Fine. Since you're already here, I'll play along. Anyway... the BOSSes you're going to fight are all my employees. A world of swords and magic, an interesting and absurd story.