Levelling Up In An Exclusive Dungeon

Hunter Kang Jin-hyeok has been D-rank for years. His days were spent barely scraping by with part-time jobs, unable to level up due to the hunting grounds being controlled by major guilds.One day, a dungeon appears in his room."This is… a dungeon?"With the dungeon now in his possession, Jinhyuk begins to successfully hunt, level up, and gradually grow stronger…"Just wait and see, you major guild scumbags who looked down on me! I will become stronger with this dungeon!"