Level Up with the Gods, Vol. 2 (manga)

The world has ended. Deadly beasts roam the earth and mankind has turned against one another. The only hope for survival is to climb the tower that promises to give you godlike powers if you can withstand its challenges. However, Yuwon Kim, who's returned from death after failing to conquer the gods the first time, won't climb the tower like it's intended. He'll need to break every rule and defy all the odds if he wants to stand a chance against the outer gods that took his first life. The tutorial is over and now begins the climb to become a god!