পর্ব 4: ডেবিউ পারফরম্যান্সের সময় এয়ারিয়াল নাইটস এবং ভার্জের বিস্তারের মুখোমুখি হয় ওয়াকিরি এবং ডেল্টা স্কোয়াড্রন

4

The time comes to Freyja's first concert as a member of Walküre, as well as Hayate's first sortie as a member of the Delta Squadron. Everything runs well until the Aerial Knights strike again, while at the same time causing a mass Vars 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 Vars outbreak on their own. Meanwhile, the Aerial Knights reveal that while they have been distracting Walküre and Delta Squadron, they had successfully seized a different planet with their army and announce a declaration of war from the Kingdom of Wind to the New Unified Government. (Source: Wikipedia)