疾风的感觉扩张，只要走错一步，就会有瓦尔化的可能性和邻加的危险。为了分析，开始进行芙蕾雅的歌和疾风的共鸣实验。另一方面，玛基娜和蕾娜担心一直被隔离的美云，两人想发起什么行动——

為了對颯的知覺擴大進行分析，以弗蕾亞的歌聲與颯進行共鳴實驗。另一方面，美雲仍持續遭到隔離。

為了對颯的知覺擴大進行分析，以弗蕾亞的歌聲與颯進行共鳴實驗。另一方面，美雲仍持續遭到隔離。

Freyja is called along Hayate for an experiment to measure the effects of her singing into his body, but concerned about his wellbeing, she finds herself unable to sing. Meanwhile on Windermere, Keith is in doubt regarding Roid's true intentions and asks his squadmates, the twins Theo and Xao Jussila, for a favor. Worried that Freyja might leave Walküre for his sake, Hayate decides to resign from the Delta Flight, but Freyja insists that she is the one who must step down, until Mirage lectures both to not relinquish their dreams and careers for each other. With Mikumo still on the medical bay and off limits to visitation, Kaname, Makina, and Reina decide to infiltrate the place in order to find her, but they are caught midway and while Makina and Reina are arrested, Kaname discovers the place where Mikumo is being held.

ハヤテの感覚拡張は、一歩間違えばヴァール化してしまう可能性と隣あわせの危険なもの。分析のため、フレイアの歌とハヤテの共鳴実験を行うことになった。一方、隔離されたままの美雲を心配するマキナとレイナは、なにやら二人で行動を起こそうとするのだが――

하야테의 감각 확장은 자칫 잘못하면 바르가 될 수 있는 위험성을 동시에 가지고 있다. 분석을 위해 프레이아의 노래와 하야테의 공명 실험을 하게 된다. 한편, 격리된 채로 있는 미쿠모를 걱정하는 마키나와 레이나는 둘이서 뭔가 행동을 취하려고 하는데...