Overview: Arrival of the military students and passengers on Aries Station. Commencement of their training.
Overview: Shuhei, Aki and Aya arrive. Ryota buys time for Sayaka during a training simulation for her to find Aya and tell that she will not be able to see each other.
Overview: Warning klaxons signal an emergency. Terrorists begin their attack while the crew and passengers attempt to evacuate.
Overview: Some are stranded on the station. Shuhei and Cellaria are injured in battle. Flashback to Nao's childhood.
Overview: Flashback to Aki's childhood. The military students prepare for a counter-assault on the terrorists.
Overview: Cellaria is captured. Shuhei attempts a rescue.
Overview: Discovery of a strange virus. Cooperation occurs all over the station for survival. Nao is injured in an attack.
Overview: Nanami is found. The terrorists are double-crossed. Flashback to Yu's childhood.
Overview: Shuhei is being corrupted. Yu is captured but escapes with the help of her childhood friend.
Overview: Cellaris's past is revealed. The military students make plans to leave the station.
Overview: Aya manages to escape at the cost of Gale's life who ensures her safety.
Overview: With the station starting to burn up in the atmosphere of Earth, the rest of the crew commenced the evacuation of the station. The event shifted forward for 1 year, where everyone returned to their normal lives. Most characters' futures were revealed as well.