Eden's Zero manga summary:
In this world, respect is earned with martial arts. Weak martial artists have strengths of tens of thousands of pounds, capable of cracking boulders. And the strong ones can cut off rivers and split mountains. There are even martial kings who know everything and can travel across the universe.
Bam, who was alone all his life has entered the tower to chase after his only friend, Rachel, but how will he survive without having any special strength or power?"What do you desire? Money and wealth? Honor and pride? Authority and power? Revenge? Or something that transcends them all?
Other than those who live off defeating monsters, most people are only around Level 1 to 5.
What's more, not just anyone can go out to hunt monsters; it's heavily influenced by one's role appointed by God.