On the remote island of Mehndria, five warring city-states are forced to come together to cave a common enemy: Giant Mysterious Mechs. These robotic invaders show up without warning, destroying everything in their path. Then, right before wiping out the entire civilization, the Mechs all power down for no clear reason, leaving the survivors to rebuild their world together. 800 years later, the world has moved on. The city states are now United as one nation: a land littered with massive robotic relics that serve as monuments to a long forgotten war. After centuries of dormancy, on of these long-frozen Mechs suddenly powers up, revealing a man who is confused, misplaced in time, and very much alive.