In a far away world, a land called Aikiria, home of the World Tree. The World Tree is a powerful being known as the incarnation of all good and evil.

 

The World Tree is said to possess immense power capable of altering time and space. It is even said to be the creator of all worlds.

 

Kaguno, a descendant of Aikirians, guardians of the World Tree and protectors of the Realm, loses his memories from the destruction of the World Tree and falls into a parallel universe where shards of the remnants of the World Tree have been lost.

 

This new World acknowledges Aikirians as legendary warriors that once inhabited these lands. In this world enhanced abilities and magic exist allowing humans and Demi Humans called "Heyun" to protect themselves from the demons of this world. In this world the land is ruled by an evil King who terrorize the people with fear and acts of brutal violence, their worst acts committed was the genocide of the Heyun race. Now people live in fear under the reign of this mad King, some villages are still independent, but not for long as the King expands his territory.

 

As Kaguno ventures into this new world trying to find out who he is and where he comes from, he's tasked with the mission to find the fragments of the World Tree, in order to return home and revive the World Tree. He learns that this world isn't so different from his previous one, where the cruelties of reality can be seen occurring around every corner due to the demonic beings called Soulless, a Demon that takes the form of a human and that has an insatiable hunger for human flesh and Heyuns.