Kang Jin-Hyeok, a perpetual D-rank hunter. Unable to level up due to large guilds controlling hunting grounds, he scraped by with part-time jobs.
One day, a dungeon appears in his room.



"Is this... a dungeon?"



Having exclusive access to the dungeon, Jin-Hyeok begins to grow stronger as he successfully hunts and levels up...



"Just you wait, you big guild bastards who looked down on me!
I will become stronger, with this dungeon!"



(Source: Naver Webtoon, translated)