Mr Devourer, Please Act Like a Final Boss

Alternative:

Please Act Like a Boss Monster, Mr. Swallow! / Act Like a Boss, Mr. Swallow! / The Unbeatable Dungeon’s Lazy Boss Monster / 보스 몹답게 행동하세요, 스왈로우 씨!

Deep within the most infamous dungeon, the ‘Primordial Core’, lives the worst boss monster of all time. It’s the story of the struggle of a boss monster who just wants to rest.