Shin and his friends continue their pursuit of Morpho with Frederica in tow. Meanwhile, the Federacy and its allies begin staging diversionary attacks on the Legion to draw their attention away from Shin. Grethe returns to the frontlines with the rest of Nordlicht, now freshly resupplied and ready to support Shin. In Legion territory, Raiden confronts Shin over his recent behavior during battles, warning him that such a dangerous fighting style puts them all at risk. He reminds Shin that they are still a unit, and his friends will be there to support him so he doesn’t need to keep fighting alone. As the team continues to chase Morpho, Frederica asks everybody about the ocean and they all promise to go see the ocean together after the war. That night, Frederica meets with Shin and confides that like him, she fears losing her sense of purpose, and she deluded herself into thinking that she needed to put Kiriya to rest. She tells Shin that he shouldn’t be afraid of the uncertainty of the future as long as he has his friends. However, Shin reveals that ever since his near death experience at the hands of Shourei, he has been unable to feel any desires, and thus doesn’t feel he is even alive. Elsewhere, No-Face warns Kiriya that enemy forces are tracking him and instructs him to deal with the matter.

As the Nachzehrer nears the Morpho, it comes under anti-air attack, forcing Nordlicht to airdrop while the Nachzehrer pulls away to distract the Legion’s air defenses. Nordlicht then fights its way through the Legion defenders and approaches the Morpho, only for Shin to realize at the last second that the damaged Morpho is bait to lure them into the range of a second Morpho gun controlled directly by Kiriya. Nordlicht is narrowly able to avoid the Morpho’s shot and retaliate. Shin falls back into his battle lust, and is only knocked out of it when Kurena is forced to fire on him. With the element of surprise lost, Kiriya is ordered by his superior “No-Face” to withdraw. Shin and his friends decide to pursue Kiriya while the rest of Nordlicht stays behind to hold back the Legion reinforcements. Meanwhile, as the main Federacy force advances, they manage to recover Grethe and the Nordlicht survivors, but cannot provide any support to Shin. As Shin and his friends take a break, they discover that Frederica has stowed away in Fido’s cargo trailer. While they are angry at her coming along with them, they have no choice but to bring her along with their pursuit of Kiriya.

Recap of Part 2’s first seven episodes.

As Nordlicht prepares for their mission, Grethe successfully petitions to allow the use of the prototype ground effect airplane “Nachzehrer” to be used as the unit’s transport, rather than relying on much slower and more vulnerable helicopters. Grethe also volunteers to be the Nachzehrer’s pilot, being the last remaining person with any experience flying it. Frederica unsuccessfully tries to convince Shin not to go on the mission, fearing that he will die or become a monster like Kiriya. Zimerman, powerless to stop the operation, expresses his wish to see that Shin and his friends return home alive no matter the cost, and privately swears to himself he will destroy the world if they don’t. The Federacy and its allies then commence an all out assault on the Legion as a distraction, opening a hole in the Legion’s defensive perimeter allowing the Nachzehrer to launch and head for the Morpho. During the flight, Shin hears the Black Sheep’s voices and smiles.

In the Republic, Lena organizes a desperate last stand against the invading Legion. In the Federacy, Shin, his friends, and Frederica manage to survive the bombardment, but it is revealed that the Legion used a massive railgun codenamed “Morpho” to bombard all of the Federacy’s forward bases, inflicting significant losses. While Morpho was damaged by a cruise missile attack, military analysts predict it will be able to move into range of any allied capital city once it is repaired. With few options due to Morpho’s extreme range, the Federacy decides to send Nordlicht on a deep strike mission to destroy the railgun. While Grethe is furious the military is sending Shin and his friends on what is expected to be a suicide mission, none of them object since they’d rather go down fighting the Legion rather than run away from the war like the Republic did. Meanwhile, Shin’s friends are worried about his mental state after he received a letter from Eugene’s sister angrily demanding to know why he killed her brother and the possibility of Lena being dead. A week after the Legion invaded, the Republic’s capital and Lena’s home are shown to be in ruins.

The Legion begins a simultaneous offensive against the Federacy, Republic, and other allied nations with massive numbers never seen before. The Federacy’s defense lines come close to being overun, but a quick deployment and counterattack by Nordlicht squadron manages to slow them down long enough for Federacy lines to reinforce and stabilize. Shin the goes on the offensive against the Legion, destroying countless Legion units on his own. Frederica has a vision and witnesses Shin taking pleasure in the fighting, reminding her of Kiri’s fall to madness. She also witnesses the Republic’s defenses collapsing under a major Legion assault. Eventually, the Legion withdraws from the Federacy and Frederica warns Shin about his similarity to Kiri. Meanwhile, in the Republic, word of the Legion breakthrough reaches HQ, so Lena’s uncle agrees to try and hold off the Legion long enough for Lena to rally the 86s to close the breach. Using an upgraded Para-RAID, Lena connects herself to every 86 pilot simultaneously. Back in the Federacy, Frederica informs Shin and his friends about the dire state the Republic is in when both Shin and Frederica sense Kiri is about to bombard their base.