Ahriman, malicious Spirits born from mankind's conscious and subconscious thoughts and emotions

500 years ago 10 of the world's strongest Grimoire Sorcerer descendants of the humans who first ate from the tree of origins, came together to establish the GSO, the Grimoire sorcerer organization.

with the hopes of bringing together Grimoire Sorcerers from all over the world to protect mankind and exorcize and seal away these malicious spirits that plague humanity.