As far back as the mortals remember, the World Tree - Terasyr has been existing and standing there for a long time. The mortals living around Terasyr which was also called as the Home of Fae, built villages and even developed their kingdoms.

In legends, that was a place of origin growing a sea of trees and countless lives beneath. Even till now, in the generation of the Dynasty of Engora, the World Tree that is still standing through clouds is kept guarding for days and nights.

Centered on Terasyr, There were seven tribes established by the descendants of seven saviors surrounding the World Tree and protecting it. Based on the seven radial canals extending to the farthest place, seven tribes resisted against the end of the world where was covered by the dark and dangers.

World Tree, another name of Terasyr. The name was derived from the mortals’ pride to the place of origin. The mortals who believes they were guarding the center of the world resisted the Nine Heads – Zavudash which was suffering in the trench in the end of the world for generations.