Mugen no Ryvius EP4 - The Ring of Ryvius

The Ryvius is an advanced space cruiser of unknown design hidden deep inside the Liebe Delta station. It has a sophisticated computer control system, multiple support craft, a combat mech known as the Vital Guarder, a perfect 1G environment, and enough supplies to last the students for many months. Everyone aboard the Rever, except for the sabotuers, moves into the Ryvius and settle into the ship, expecting a long wait until they are rescued.