Living in his sister's mansion in the wealthy West District of Olympus-3, a Sky City, Sander wallows away his days in self-pity, disregarding the grim Earth of 2201 - which has suffered warring mage factions and devastation by monsters from the Chaos Realm.Five years have passed since his daughter died under mysterious circumstances, something he could neither solve, nor get his mind off to the present day. Everything changes, however, when he meets Scarlett - a Lunar Knight who whisks him away from his gloomy life after he discovers that she is battling the Chaos…