The lives of many shinobi were sacraficed in the struggle to preserve peace and prosperity in the shinobi world. During this time 50 years ago a large scale war given the name the Dawn of Shinobi, broke out between the shinobi villages as well as free roaming rebels as each rivaling faction strived to obtained the ultimate power in the lands. This power was that of the tailed beasts that had plauged the land time and time again. Finally after many years the wars died down and the arguing was casted down by the wayside. As impossible as it had seemed the conscept of peace had finally been achived, but at what cost? Many legends such as the neo sannin, the sages, and even the kages were murdered in the war and the shinobi system as a whole was completely decimated. Now we truly had nothing... we would have to rebuild again.
Then 5 years later a strange cosmic disturbance took place. With all of the chakra build up over the last couple hundred years and with the sealing of the Bijuu for good the balance of chakra in the world shifted causing a huge rift to swallow up the continents leaving nothing left behind. Our old world is gone and we are no longer the top of the food chain. Everyday we run the risk of being driven to extinction by strange creatures that roam these new lands. Also the basics of science and physics no longer apply as this world completely has a new set of rules.
The gravity here is ten times heavier, and the air is dense and hard to breath. The sun shines for 19 hours a day and the rules and simple mechanics of even the most primitive conscepts like building a fire are thrown out the window. As humans our anatomy is changing rapidly to adapt to the environment as well. We have become stronger and faster our senses have become sharper and new jutsu have been discovered. However it is only a matter of time before either the predators kill us off or the people decide to wage war. So we must act quickly to reestablish our ranks. Here in this world nothing is the same and we cannot be the same.... We must rise above the prowess of our ancestors and reach an evolution.... A SHINOBI EVOLUTION....