Shirogane no Ishi: Argevollen episodes

Ingelmia has introduced the Sturm Beta to counter the Perphevollens. The tide of battle turns towards Ingelmia's side again.

Cayenne rebels against the Arandas military, and Captain Samonji sides with him. The 8th Unit goes to stop Samonji, but Argevollen is captured instead.

By deliberately leaking information, Cayenne is able to capture the enemy Sturm Betas. The U-Link squad is now much more powerful, and Samonji has broken through the Gate of No Retreat.