Powerful SSS Rank Boss Annihilate All Intruder Who Goes Inside His Dungeon!

Manhwa Recap: Dungeon raiding is back in style. The seven Malevolent Dungeons are dungeons that are thought to be nearly hard to raid. The strongest of them all, "Swallow," resides deep within the infamous "Core of the Ancient," the dungeon. "How could someone who's supposed to be the Boss Monster... doze off until humans are right in front of him?!?!" The doorsteps of the Ancient Core will never be entirely empty because of the constant stream of human visitors... However, does that not also imply that they will never cease bugging Swallow? "I-I don't want to do it." These are the difficulties faced by a Boss Monster who merely wants to unwind!