Dungeon conquest has reached a new era. The Seven Deadly Dungeons of Evil stand as the most formidable bastions ever discovered—surpassing all S-class dungeons in both power and impenetrability. At the heart of the Ancient Core dwells history's deadliest boss monster. 'Isn't preventing their invasion of my domain your actual responsibility?' Here I remain, accomplishing absolutely nothing, yet somehow wanting to accomplish far, far less. Welcome to one boss monster's desperate pursuit of peaceful slumber, constantly undermined by ceaseless misunderstandings and impossible expectations.