Freyja is to debut as a member of Walküre at a concert on planet Randall. Everything goes well until the Aerial Knights strike during a mass Vár outbreak among the New UN Spacy (NUNS) forces. Mikumo and Freyja begin singing in unison to stop the outbreak, and the other Walküre observe how Freyja's song seems to amplify Mikumo's, managing to suppress the Vár outbreak on their own. Meanwhile, the Aerial Knights reveal their identity, that their army has seized planet Voldor, and the Kingdom of Windermere declares war against the New Unified Government.