A war had raged on for centuries in an isolated part of the world. Under a smog of burning rust, the continent of Katoki tore itself apart with Titan battles between mechs and golems.

With Adelaide Wiltkins and Joashden Stalewaver at her side, Lucinda Baerrinska returns to the Titan War she escaped from in hopes of finding a doctor to save her comatose sister, only to arrive to a new threat.

Elsewhere, deserter Shou Kenta performs an experiment that could change the outlook of the war and put an end to the conflict but finds himself back in the crosshair of the army he had escaped from.

As the players move onto the board, the wheels of the eternal conflict begin to tremble.