How an Actor Survives as a Dungeon Boss

[System: You have obtained the Mark of the Sovereign.] [System: You have been appointed as the boss of the SSS-rank dungeon ‘Dark Divine Palace’.] I ended up becoming the owner of humanity’s worst dungeon—the Dark Divine Palace. The problem is that my subordinates are far stronger than I am. There’s only one way to survive among those insane monsters: to act strong. Han Doyoon’s life-or-death method acting begins!