Infinite Ryvius

All but a few of the crew have been evacuated to the Lift Ship which contains the Vital Guarder. The Ryvius, now powerless and dead in space, is boarded by enemy troops, who are quite surprised to find that there are only children aboard. Ikumi Oze seems to snap under the burden of command. Kouji Aiba and Aoi Hosen must take one last, desperate gamble to save them all.

Ikumi Oze is now Captain of the Ryvius, and orders a new ranking system, assigning duties and living quarters according to ability. Disruptions and hard feelings are widespread, especially when the ""E""-class (including Kouji) are locked into their area and the lights are turned off. A ""bubble"" of normal space is discovered at Sere 7, while Kouji finds a way out of ""E""-class. He confronts Ikumi, Yuki & co., but just ends up being shot in the shoulder. Nobody bothers to help him; they just leave him slumped on the deck, bleeding heavily.

Taking control of the Vital Guarder, Ikumi shows how serious he truly is when it comes to his demand of peace. Meanwhile, aboard the Ryvius, Fina takes drastic steps to cut off Kouji's past.

The deaths during the battle send shockwaves through the Rvyius, as Juli questions whether she should be captain. Friendships are quickly shattered in the wake of the attack on Kozue, as Kouji tries to determine what he wants most.

Kouji and Ikumi talk Yuki out of his tantrum and convince him to stay with the Lift Ship. Meanwhile, back on Earth, the guys responsible for this mess are talking things over. The loss of Hyperion is dismissed as a minor concern; more troubling is the fact that the captain of the Blue Impulse ""drill ship"" has had a total nervous breakdown and is now in a padded cell. The Ryvius crew performs repairs, but morale is low. ""Wanted"" posters for Airs Blue are widely distributed, but he still manages to escape capture. Juli is struggling with her new responsibilities, and, oddly enough, misses Airs Blue. Her first proposed reform--doing away with the ""unlimited points"" status completely--is soundly rejected by the bridge crew. That'll come back to haunt them. Another enemy ship, the Dicastia (with an all-female crew!), attacks the Ryvius with a new strategy; using a multi-part Vital Guarder, they surround the Ryvius with a gravity-sphere, intent on crushing it.

The Vital Guarder manages to fight off the enemy, but takes damage in the process. While the Ryvius heads towards Hyperion, Airs Blue orders the Lift Ship (mostly out of contact with the Ryvius), on the same course. But what he doesn't know is that Stein, on the Ryvius' bridge, is recording every word he says [I said ""mostly"" out of contact, remember?]; an act that will have severe consequences for all of the Ryvius' crew.

As tensions rise among the crew over the point system, a new enemy comes forth from space.

Following the Ryvius' successful battle in Mars orbit, the crew decides to throw a party to celebrate and boost morale. But during the party, a terrible thing is learned by the students aboard the Ryvius.

While learning how to operate and survive on the Ryvius, the crew aboard the saboteurs' ship prepare for their backup plan. The Zwei assign groups for certain jobs to make the operation of the Ryvius much smoother. However, Kouji and Yuki are placed into the same group and they are less than enthusiastic. Yuki's bitterness towards his brother, though, makes him take his anger on his brother, all while the Ryvius is being attacked. The Ryvius automatically defends itself by creating a well of immense gravity, destroying the ships in the process.

While preparing to escape the Geduld, the saboteurs try to take over the Rever so they will reach their rendezvous point. However, Aires and his gang foil their plan and the saboteurs are locked up. With the Rever finally ready to launch, the Zwei begin the countdown. In the end, nothing happens and instead of moving out of the Geduld, they are being pulled even deeper by the sabotuers' ship. Suddenly, the Rever regains power, with the help of Neya, and the Rever along with the central column of the station. As the station surfaces, we see that the central column is really a ship called the Ryvius.

A routine dive into the Geduld has turned into a struggle for survival as an act of sabotage sends the Liebe Delta Astronaut Training Center and everyone inside into certain destruction. Things continue to worsen as the station begins to collapse due to the effects of the Geduld. Someone becomes trapped near the collapsed area as Kouji and Ikumi hurry to rescue the person. However, there are dangerous levels of radiation separating them as Yuki, Kouji’s younger brother, stops them and turn them back in an unfriendly manner.