Fics like Fire Emblem: Heirs of Scarlet Flowers

Fate was never supposed to bring them together. In one timeline, the Mysterious Mercenary was never born, leaving the Ashen Demon to face their choices alone. And in another, the Mysterious Mercenary and the Ashen Demon were destined to fight to the death. However, in this timeline, Jeralt Eisner, in a remote village in Leicester, finds a purple-haired girl that his daughter, despite her oddities, could not part with, leaving him forced into taking the girl under his wing. This simple twist will change Fódlan forever, but will this twist of fate bring this timeline to a platinum future, or to an age of ruin? (Or, Three Houses/Hopes with Byleth and Shez as siblings amongst several other changes)

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1. A Demon Named Byleth by IndiSmile, RK3996 (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses, Fire Emblem Musou: Fuukasetsugetsu | Fire Emblem Warriors: Three Hopes)
2. An Adrestian Tail by AMX004_Qubeley (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)
3. Somewhere, Sometime by IGOM (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses, Fire Emblem Musou: Fuukasetsugetsu | Fire Emblem Warriors: Three Hopes)
4. dont text and spar kids by orphan_account (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)
5. It was supposed to be simple by IndiSmile, RK3996 (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses, Fire Emblem Musou: Fuukasetsugetsu | Fire Emblem Warriors: Three Hopes)
6. Autotomy by GoldenThreads (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)
7. The Savior King, The Master Tactician and the Queen of Liberation by ReynaAtTheEnd (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)
8. Silver Flower by NovaVokri (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses, Fire Emblem Series)
9. Three Whorehouses by DaBossMan (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses, Fire Emblem Series)
10. On Black Wings by Raxistaicho (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)
11. The Blade Breaker's Daughters by IndiSmile, RK3996 (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses, Fire Emblem Musou: Fuukasetsugetsu | Fire Emblem Warriors: Three Hopes)
12. General by Maddy02 (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)
13. Golden Dawn by dvrtrblhr (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses, Fire Emblem Series)
14. Aria of the Black Eagle by AMX004_Qubeley (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses, Senki Zesshou Symphogear)
15. Broken Star by Balis (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)
16. The Dawn Will Come by philliam (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses, Fire Emblem Series)
17. non-linearity by 0shadow_panther0 (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)
18. The Emperor and the Goddess by Captain_Flash (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)
19. A Matched Pair by supersemantic (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses, Fire Emblem Series)
20. To Weather the Dark by AdraCat (Fire Emblem: Fuukasetsugetsu | Fire Emblem: Three Houses)