On the planet Randall, the time comes to Freyja's first concert as a member of Walküre, as well as Hayate's first sortie as a member of Delta Flight. Everything runs well until the Aerial Knights strike again, while at the same time causing a mass Vár outbreak. 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 that while they have been distracting Walküre and Delta Flight, they had successfully seized the planet Voldor with their army and announce a declaration of war from the Kingdom of Wind to the New Unified Government.

芙蕾雅加入Walküre正式出道，决定在行星兰道尔举行疫苗演唱会。面临第一次的演唱会，芙蕾雅坐立不安。正式演出就要到来，“你是抱着什么想法去唱歌的？”被美云这样问的芙蕾雅——

面對即將來臨的第一場演唱會，弗蕾亞的心情忐忑不安。就在即將開唱之際，美雲測試弗蕾亞是否準備好唱歌了。

面對即將來臨的第一場演唱會，弗蕾亞的心情忐忑不安。就在即將開唱之際，美雲測試弗蕾亞是否準備好唱歌了。

フレイアのワルキューレデビューは、惑星ランドールでのワクチンライブに決定した。初めてのライブを控え、フレイアはそわそわと落ち着かない。本番直前、｢あなたはどんな想いで歌うの？｣と美雲に問いかけられたフレイアは――

프레이아의 왈큐레 데뷔는 행성 란돌에서의 백신 라이브로 결정되었다. 첫 라이브를 앞두고 프레이아는 안절부절못한다. 공연 직전, 프레이아는 너는 어떤 마음으로 노래하는 거야?라고 미쿠모로부터 질문을 듣게 되는데…