The F-rank Gunslinger Hunter's Tower Conquest

“F-rank? How is a piece of trash supposed to conquer the Tower?” “He’s not just any F-rank. He’s an F-rank with a gun.” In a world of hunters who possess only a single trait, comes the story of Kang Hae-won, a hunter with a sentient gun named ‘Black,’ and his journey to conquer the Tower! Will he be able to conquer the Tower and kill God alongside ‘Black’?