Saige was a summoner.

Her Anarygu, a species of mythical demon hybrids, was her only way to escape. Saige's father, Samuel, attempts to use her as a human sacrifice to gain favor with the demon gods and bring down Divina, the goddess of the entire world, with a dangerous weapon.

The God Destroyer is an ancient weapon from before the times of the Neo Gods reign that literally has the power to destroy even gods, threatening the world's end. Her fate carries her through the lands of Anlyn and Sen to find comrades and her destiny as a summoner.