Pure jewel

Many years ago, war broke out between the eight races that inhabited the earth in order to find out who deserves to rule the world. This war led to the extinction of the weakest race among them, which is humans. Their extinction led to an intensification of the war, which left many victims, which prompted a group of people of different races to unite to make a huge barrierHe surrounded all the citizens of the races and prevented them from leaving, which stopped the war, but not for long, as the races discovered that what keeps the barrier is one jewel, and that the race that will possess it will be the victor and will be able to rule the world