Phoenix Reinhard lives in Luminar, one of Osiren's five great cities. These cities are rumored to be protecting religious emeralds used to lift a curse their Protectors' had cast upon them centuries ago. They had become forgotten--until Luminar was destroyed in search of this artifact. Twelve years later, Phoenix assumes responsibility of protecting the remaining cities from those planning to collect all five. He quickly learns there is more to his religion than he ever believed.