Fics like Aria of the Black Eagle

With the Church of Seiros repelled from Garreg Mach by the Black Eagle Strike Force, Emperor Edelgard von Hresvelg's war for the liberation of Fodlan reaches its turning point. But just as she begins to plan her next move to attack Arianrhod, she and several of her closest comrades find themselves whisked away by a mysterious force to a world like nothing they've seen before—a world in which three young heroines armed with the power of song clash against a mysterious diva whose aim is no less than to stop the sky itself from falling. The new world is fraught with dangers—between the bizarre alien Noise whose touch means instant death, the mad scientist Doctor Ver and his growing obsession with Heroes' Relics, the machinations of the Bavarian Illuminati, and Those Who Slither in the Dark, the combined forces of the Black Eagle Strike Force and Section Two of the Special Mobile Disaster Response Team have their work cut out for them. Yet the greatest danger they face may be hiding in plain sight...

You may also like

1. An Eagle Among Lions by AMX004_Qubeley (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)
2. Flight of the Ashen Devil by PyromaniacalSunrise (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses, Devil May Cry (Gameverse))
3. Once in a Lifetime by VanadisValentine (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)
4. Love, Regardless of Direction by AutumnVine (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)
5. A Face of Deceit by KyokoEnthusiast (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses, Fire Emblem Musou: Fuukasetsugetsu | Fire Emblem Warriors: Three Hopes)
6. On Black Wings by Raxistaicho (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)
7. The Emperor and the Goddess by Captain_Flash (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)
8. Stolen Time by Espernyan (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses, Fire Emblem Musou: Fuukasetsugetsu | Fire Emblem Warriors: Three Hopes)
9. The Black Tome by SignetFairy (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)
10. Those Who Can't Teach by mixedvalence (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)
11. To Give Them The Future by Espernyan (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses, Persona 3, more)
12. Cyber Emblem ~ Edge of Spark by The_Myth_Rider (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses, Transformers - All Media Types)
13. Fire Emblem Three and a Half Byleths by LumissA03 (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses, Fire Emblem Musou: Fuukasetsugetsu | Fire Emblem Warriors: Three Hopes, more)
14. Symphogear DXB: Dragon x Bow by ForrestGollem (Senki Zesshou Symphogear, Highschool DxD (Anime), more)
15. Fire Emblem: Three Flames by BlazingMoon375 (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses, Fire Emblem Musou: Fuukasetsugetsu | Fire Emblem Warriors: Three Hopes)
16. Seeking The Sun by Relh99 (Fire Emblem Series, Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)
17. Love in the Dark by GirthJohnson (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)
18. The Goddess, the Emperor, and the Dragon by The_Mothmans_Ranger (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses, Elder Scrolls V: Skyrim)
19. Show Me by pseudovirus (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)
20. Fire Emblem: House of Witches by P0ppy_L1ly, kallista_dragonsoul (Mahou Shoujo Madoka Magika | Puella Magi Madoka Magica, Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)