In a society like Dragon City where the people were tough and the martial arts were respected...
When the ownership of a resource or opportunity was not clear, it was undoubtedly the most appropriate way to replace an all-out chaotic fight between the two forces with a fair contest between individuals that was bound by rules.
From several decades ago, the Challenge Tournament had been popular in Dragon City.
The commercial competition between the nine mega corporations, the academic debate between Dragon City University and the alliance of five universities, the superiority or inferiority of runic machinery and biochemical modulation technology, the influential aristocratic families with one hand to the common people... There was conflict everywhere, and everyone liked to use the Challenge Tournament to resolve their differences and grudges.