Alien World: the Ancient Dragon Destroys Ember

This is Zerva continent There are four races at the top of this road The dragons that burn everything, the inviolable gods, the powerful Titans, and the demons that symbolize darkness But the world is not peaceful Aliens from other universes are trying to invade this world The powerful fighting forces of the four major races are heading to the stars one after another And this also leads to lawlessness in other races Steal the dragon's heirs, reduce the number of religious groups that believe in gods, use various dirty methods to expel the Titans, and massacre the weak demons. In this way, the number of members of the four major races is getting smaller and smaller, and the hostility towards the other races is getting deeper and deeper. And other races also began to rise Orcs, elves, dwarves, and humans have established their own empires. The story takes place in the Colosseum in the human imperial capital. This is my first time writing this kind of novel, so please forgive me if it's not good. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.