The Fullmetal Alchemist Sister is a fanfic written by STLHero.
It is about the Gender Flip of the titular character of Naruto, Naruko Uzumaki, becomes Emma Elric as she is reborn as the younger twin sister of Fullmetal Alchemist protagonist, Edward Elric.
Read it here.
Don't read the tropes below unless you want to be spoiled.
This work provides examples of:
- Reincarnate in Another World: Naruko reincarates into the world of Fullmetal Alchemist as Ed's younger twin sister.
- Protagonist Title