Utopia a world filled with different races.
In this kind of world, conflicts and wars are unavoidable, to reduce the number of casualties and increase the number of gains, the various races came with the Arena.
Arena a place where the humans, werewolves, vampires, orcs, elves, and all kinds of races send their best fighters to resolve their problems through all-out fights with no rules.
During these fights, all the races managed to display their might, power, prowess in all kinds of aspects such as strategy, technological advantages, magic, etc.
After the fights ended the ranking of the various races came out and the war between them can be said to have come to an end without suffering any live casualties but that cannot be said about their territory and resources.
The races at the bottom of the rankings had their territory and resources reduced and due to that lack of resources came the death of many and also the reduction on the population of the said races. Still despite all that, none complaint since they all have seen the prowess of the other and new that if a real all-out war broke out the outcome would be ten times worst.
After the rankings of all the races had been decided and the conflicts between them seized to exist, they didn't disband the Arena and instead, all races put on efforts to make it expand since they all knew that the rise of new problems would eventually come, be it among their own or between the other races.
As the years past by the Arena evolved and became the means to resolve all kinds of problems be it between personal grudges to national conflicts.
The Arena also became the means of entertainment for some people and the chance to earn money and glory for others as to make their lives better.
The years kept on passing and the Arena kept on growing larger and larger. As the Arena kept on growing new fighters kept on appearing constantly and the rankings among the races kept on changing.
The years kept on passing and one day different kinds of aliens came to Utopia.
Once the new outer races showed their technological prowess everyone thought it was over.
Luckily for all of Utopia, the representatives of the various races managed to convince the outer races to participate in the Arena to reduce all kinds of casualties on both sides. The outer races agreed and so participated in the Arena.
That day Utopia send their best fighters but unfortunately for them, they suffered quite a defeat. Still, through the Arena, they managed to reduce their losses as much as possible.
From then on the Arena started to expand throughout the galaxy and became the means to resolve everything throughout the galaxy.
The years passed and the Arena kept on evolving on a bigger scale than ever until one day eleven people appeared with an appearance out of this world claiming to be from different dimensions. Everyone knew that war was inevitable when that happened so the representatives of the planets throughout the galaxy gathered to discuss with the representatives of the other dimensions.
After they discussed their problems each and the reason for their appearance everyone knew that war was inevitable so they decided to use the Arena to solve this problem. The representatives of the other dimensions were quite interested in the idea so they went back and reported this unique idea to their superiors and then it was decided.
Each dimension would built their Arena and through this, they would gather their best fighters, twenty years later they would hold an interdimensional tournament to decide the outcome of this large scale conflict where the losers would perish and the winners would thrive.
Now the Arena has been split into different classes not only to determine the level of the fighters but also the level of the conflicts.
Those levels are: local, town, country, national, race, world, galaxy down, galaxy middle, galaxy upper, and interdimensional.