Iron and Blood
Mikazuki belongs to the private security company CGS at the Martian city of Chryse, which has been hired to escort Kudelia to Earth. But just as preparations for departure are underway, Gjallarhorn attacks CGS in an attempt on Kudelia's life.
The adults of CGS flee in the face of Gjallarhorn's attack, using Mikazuki and the other children as decoys. Gathering the children who have been left behind, Orga decides to fight back against Gjallarhorn and puts a certain plan into motion.
Thanks to Mikazuki and the Gundam Barbatos, Orga's group has temporarily repulsed Gjallarhorn, though not without many sacrifices. As they are discussing their next move, one of Gjallarhorn's Graze mobile suits again appears at the CGS base.
The Price of Life
Kudelia is distressed so many boys have lost their lives because of her. Mikazuki takes her to the farm run by Biscuit's grandmother, where an unexpected encounter awaits.
Beyond the Red Sky
Kudelia and Tekkadan finally leave Mars behind them and head for Earth. With a ship waiting for them, they attempt to travel by shuttle to a low-orbital station but are attacked by Coral's Gjallarhorn forces.
As for Them
The members of Tekkadan need a guide in order to reach Earth despite Gjallarhorn's surveillance. To gain a powerful backer, they attempt to negotiate with Teiwaz, which is based in the Jupiter Sphere.
The Form of Closeness
Having demonstrated Tekkadan's strength and legitimacy to Naze, the leader of Turbines, Orga and the others renew their negotiations with Teiwaz. Meanwhile, Atra visits Turbines's warship bringing the frustrated Kudelia with her.
A Letter from Tomorrow
Tekkadan and Turbines go on ahead to Earth, leaving Mikazuki and Yukinojo on the Saisei to complete final adjustments to the Barbatos. But the events aboard the Saisei have greatly affected their respective states of mind.
While on patrol, Akihiro and Takaki encounter unknown enemies and engage them in battle. The attackers turn out to be Brewers, a pirate group that operates between Mars and Earth.
Mikazuki and Orga learn that Akihiro's long-lost younger brother is one of the Brewers mobile suit pilots. Tekkadan challenges Brewers in order to get back Akihiro's brother.
Not Yet Home
Though Tekkadan is exhausted by its repeated battles with Gjallarhorn, its members are still determined to get to Edmonton and they hasten toward their goal.
The Final Lie
As Tekkadan heads for Edmonton, it finds Carta blocking the way seeking a showdown. However, Mikazuki and the others won't let their progress be halted and they press on ahead.
A Future Reward
Orga and the other Tekkadan members have finally reached Edmonton but they are attacked by Gjallarhorn, which seeks to prevent Makanai from making it to the parliamentary session.