Mr Devourer, Please Act Like a Final Boss

The Primordial Core's an unconquerable dungeon, the lair of the most powerful monster ever to exist, the Original Monster, the incarnation of evil—Swallow... who happens to be a lazy boss monster who just wants to sleep. Taking care of this lazy bum is Renee, a homunculus maid whose obsession with Swallow knows no bounds. At this point, the only one keeping the dungeon running is Patrick, the last brain cell of the bunch—and he's a skeleton! Will Mr. Swallow get any rest amid all this chaos?

The era of dungeon raids has finally arrived. The Seven Great Evil Dungeons— the seven strongest dungeons that are considered impossible to conquer. Deep within the most infamous dungeon, Primordial Core, lives the worst boss monster of all time, the “Devourer.” “Does it make any sense that the dungeon boss was dozing off until the humans were right in front of him?!?!” Because of the constant visits from humans, the doorsteps of the Primordial Core never dry up, and the nagging the Devourer hears never stops…?! “Ha… I don’t want to do this.”