The twenty-first episode continues where twenty left off. Sasha has confronted Xargin inside Zwölf castle, hoping that she can finally end things, as Amanda and Hermann continue their search for Malek. Xargin slowly approaches Sasha while daring her to try and shoot him, and Amanda and Hermann finally locate Malek thanks to a clue that Shido left behind. They leave the castle with him, and grab Joseph’s unconscious form on the way out as well. Xargin’s reunion with Sasha goes about as well as you would expect, but Shido’s interference cuts their confrontation short and Xargin decides continue toward the castle’s server room… presumably to take control of the Isis anti-nanomachines. Victor notices and decides to head to the server room himself and lock it down before he gets there. Mei Feng and Shido decide to try and head Xargin off at the pass in a pair of Paladins while Sasha stays behind and backs-up the Isis data files. Xargin sees them coming and actually transforms into his demoniac form to take them out. They fall quite easily since they can’t even scratch him in this form. Meanwhile, following the note Shido left behind, Amanda and Hermann have taken the comatose/unconscious Malek and Joseph to her aunt’s orphanage. Xargin eventually makes his way to the server room proper and reveals that his intention all along was merely to forcibly ‘evolve’ Victor, and he does so by merging him with the server system. Task completed, he heads off elsewhere and leaves the castle in Beatrice’s hands.
Twenty-two opens with Sasha meeting up with Amanda and Hermann and giving them the Isis design data for safekeeping before she and Shido return to the castle and attempt to try and produce it, since the castle is the only place with the equipment required to create it. Beatrice finds mention of the Isis program in Zwölf’s database, but does not know precisely what it is since Sasha has deleted the relevant files. She decides that she should try to find out where Sasha and Shido may have left the data and destroy it before it can harm Xargin. Hermann senses her coming, although he at first thinks it might be Wolf returned from the dead, and heads off alone to confront her. She seems rather amused by his appearance and casually mentions how Gerd, Malek, and Wolf’s situations were all her doing. This whips Hermann up into a righteous rage and he promptly attacks. They’re surprisingly well matched, but Beatrice manages to get the upper hand long enough to wound him and head after Amanda. He’s not finished yet though, and tries to slow her down while begging Amanda to escape while she still can. All this commotion outside finally penetrates Malek’s subconscious and he awakens long enough to pins Beatrice down while Hermann finishes her off. She, however, doesn’t go quietly and focuses the last of her power into an energy blast at Malek that Hermann intercepts at the last minute. The blast is too much for his weakened state to handle, and he dies shortly after she does. The episode ends with a shot of a pair of Stealth Bombers taking off.
Episode twenty-three has Mei Feng picking up the incoming bomber on Zwölf’s radar and deciding that the UN is apparently planning to simply bomb the demoniacs, and Germany, out of existence rather than risk the chance that the infection could spread to other countries. She and Shido go out to intercept while Sasha stays behind to continue developing Isis. Deeper inside the castle, Victor has awakened and gone just a bit insane from his newfound connection to the server system. While he’s having a nice little megalomaniacal rant and surfing the data waves, Elea pops up and asks him if he’s serious about becoming God, as his entire life was built around worshiping God. He says that he has transcend God and she just shrugs and disappears with a ‘Oh, really? Well, I wish you the best.’. Such an interesting character. She pops up in front of Sasha (who has just completed the Isis) next and mentions how she’s uploaded herself completely into the GARM bike’s systems since she doesn’t want to ‘live’ on the same server as the now corrupted Victor, and advises that she too get out of the castle before he takes complete control of all the systems. While that is going on, Shido is getting shot to pieces by fighter jets as he does his best to destroy all incoming cruise missiles and Malek has decided to face off against Xargin. Shido sacrifices himself to destroy all the incoming missiles, but this proves to be just the beginning as another wave of missiles is set to originate from a satellite in low-orbit. Elsewhere, Elea arrives at the orphanage to pick up Joseph and hand off the Isis. He heads off to where Malek and Xargin are, picks up and hands Malek off to Elea, and tells her to return to Amanda while he deals with matters here. The episode concludes with Joseph and Xargin set to face off against one another for the third time… or would that be fourth?
The final episode begins with Elea popping back into the Zwölf system to update Sasha on what’s going on with Joseph as well as convincing Victor that it would be in his best interests to help them shoot down the missiles, since, after all, it shouldn’t be too difficult a task for God. While they try to destroy the various nuclear threats aimed at the country, Joseph is busy fighting the demoniac threat to the country. While he has gotten quite a bit more powerful than he was before, Xargin still proves to be out of his reach. As he’s lying on the ground, seemingly defeated, the scene bafflingly switches to a spiritual realm of some sort where Gerd and Hermann are just kind-of hanging out. Seeing Joseph appear in the realm as well, they assume the worst and Gerd decides to lend what little power he has left to Joseph; merging with his body to attack Xargin. He also proves no match for Xargin and gets sent back to the spirit realm, so Hermann merges with Joseph next. Back with Zwölf; Sasha and Mei Feng follow Shido’s example and sacrifice themselves to destroy the nuclear threat. Watching them die causes Victor to shut himself and all the Zwölf systems down in despair, taking a large chunk of the power grid with him. The fight with Xargin has also reached its conclusion, as Gerd and Hermann’s spiritual interference has stalled Xargin long enough for the Isis to activate inside Joseph’s body and destroy all the demoniacs in the area. The timeline then skips five years into the future. Amanda has rebuilt XAT from the ground up, with the newfound mission of protecting demoniac-infected people from discrimination, and both she and Malek are members.