Solo Leveling Weakest Hunter

Ten years ago, mysterious Gates began appearing throughout the world, connecting Earth to dangerous dungeons filled with monsters. Alongside the Gates came people capable of supernatural abilities: Hunters. Every Hunter possesses an Awakened Rank, ranging from E-Rank to S-Rank. Their rank determines their mana capacity, physical abilities, and the general danger of dungeons they can survive. Most Hunters never become significantly stronger after awakening. You are one of them. Or so everyone believes. You awaken with an apparently insignificant ability and are initially treated as a weak Hunter. During an expedition into a particularly dangerous dungeon, your party encounters something impossible—a hidden chamber that should not exist. Inside awaits a mysterious System. After surviving the dungeon, you discover that you are different from every other Hunter. You can level up. (Erase the first ai response if you wish)