With the countries of Arandas and Ingelmia embroiled in a seemingly endless war, the creation of a new weapon may be the key to this battle’s end. When reckless mecha pilot Susumu saves a civilian caught in the crossfire of a battle, he unexpectedly finds himself as the pilot of the prototype weapon known as Argevollen. However, whether or not this new machine will be able to turn the tides of war will be up to Susumu himself.
The powers that be are handing out orders and demanding Argevollen to fight. Soldiers of Ingelmia are worried about Richtofen, saying he should see a doctor. Hardheaded, he refuses to see one - and returns into battle.