Monsters who should be sealed away have reappeared on the continent, causing an uproar amongst the people. Each guild has identified the cause of the monsters to be abnormal spatial rifts known as "Dark Gates", and must work together to destroying the Dark Gates. A young lad named Leo has been assigned by a guild with this important task. Meet allies from across the land, each with their own back story. Some collide head to head with Leo, but they stand together with the common goal of destroying the Dark Gates!