Once upon a time, in a world called Freedom, in a time known as the Animal Age, the prehistoric people ruled the lands. It was a primitive time where they all obeyed the laws of class and order. It was their way of life. Like the animals they take after, everyone fell into a class. From the moment they are born, the DNA that makes up most of their animal traits defines their very way of life. However another gene will greatly divide them into three very important categories: the A-B-O genes; mostly known as the distinguishing factor of the role they play in society.