Miku und Shidou sind im D.E.M.-Hauptquartier, um Touka zu befreien. Sie erfahren, dass diese im obersten Stockwerk festgehalten wird. Auf dem Weg nach oben müssen die beiden zahlreiche Kämpfe bestehen, haben aber endlich auch wieder die Gelegenheit, miteinander zu reden.
Shido almost got caught until Miku makes an entry as she commands the Spirits to join the battlefield just to collect Tohka. Origami in a convention suit partners with Mana. While Shido and Miku argue, he reveals that Kurumi learned how Miku acquire her Spirit power from Phantom (like Kotori), she finally tells that she used to be a splendid singer Tsukino Yoimachi, but one day she rejected a TV producer's career offer due to disgrace, then bad rumors spread with no help from her agency and fans, she tried to reconnect with her fans, but suffers psychogenic aphonia, resulting in her losing her voice; this cause Miku to tension condemn humanity. Shido vows to keep his promise. Origami, Ratatoskr, terrorizes the territory to subdue Ellen. Westcott makes his appearance when Shido and Miku find Tohka. Shido is stabbed by Ellen with Tohka watching she goes berserk.
Mentre Mana, Kurumi e Origami tengono impegnata la DEM, Shido viene raggiunto da Miku, che decide di aiutarlo a liberare Tohka.
鏖殺公＜サンダルフォン＞を手に、DEM社の本拠に乗り込む士道。
そこに狂三、真那に続いて美九も姿を現す。更には琴里、四糸乃、八舞姉妹、そして折紙まで！
秘密のベールに包まれた最も危険な場所で渦巻く、それぞれの思惑。
そして、これまで謎に包まれていた、ウェスコットの忌まわしき企みの一端が――。
数多の火花が散る戦場！
ただひたすら十香を目指す、士道の戦争＜デート＞の行く末は！？
Shido casi queda atrapado hasta que Miku hace una entrada mientras ordena a los espíritus que se unan al campo de batalla solo para recoger a Tohka. Origami en un traje de convención se asocia con Mana.
