As Walküre and Delta Flight pay their respects to the fallen Messer, Arad and Kaname discover the pattern between the Protoculture ruins that could potentially bring the eight billion inhabitants of the Brísingr Cluster under control of the Vár Syndrome. Meanwhile, Grammier VI assumes direct control of the Windermere Kingdom's forces and launches a salvaged ancient ship from the Protoculture civilization for a full-scale assault on the New United Government.

Hayate, Freyja, and Mirage are put on trial in front of Heinz and sentenced to be executed. Mikumo is brought to the Sanctum by Roid, as he sees her as the reincarnation of the ancient Star Singer. Meanwhile, Berger sneaks Arad, Kaname, Makina, and Reina to Wright Immelmann's VF-22 Sturmvogel II in the castle, revealing that the craft is fully operational. As the execution is about to commence, the VF-22 suddenly bursts out of the castle as a distraction for Hayate, Freyja, and Mirage to escape and continue their mission to destroy the Protoculture ruins. Makina is shot by a sniper while protecting Freyja, but she urges her teammates to continue singing. Roid awakens Mikumo's true power, forcing Chaos to abort their mission as she sings an ancient and deadly song that triggers premature aging in Freyja.