Ten years have passed since dungeons appeared on Earth. There once was a weakest man who couldn't grow stronger no matter how much he leveled up. He noticed the potential in the status 'Luck', which no one considered important for strength, and spent three years focusing on developing it. As a result of his persistence, he encounters a strange skill that allows him to 'gain rewards by consuming levels'. This is a story of him gaining the power to defeat various strong enemies and uncovering the secrets hidden in the dungeon. *Stories marked "Free Gacha" are from another character's perspective. This low fantasy novel achieved 1st place daily, weekly, monthly, and quarterly, and 3rd place annually. It also achieved 4th place daily overall. Also posted on Kakuyomu.