Aglaecai are ancient, cosmic entities who birth a realmstar in a space given to them. They order the natural elements of realmstars and are responsible for crafting living worlds at the behest and delight of Iyunasai.

The Aglaecai are also responsible for their children, Eotenari, who are set upon realmstars in their creators' image. They are there to guide and give to the star's denizens cosmic knowledge passed down from the Aglaecai.