Shamir x Catherine A Fire Emblem Three Houses fanfiction. Will include spoilers for the game, especially the Black Eagles route. Catherine dedicated herself to Lady Rhea. She knew not everything she did was right, but she still owed everything to Rhea and chose to serve her for eternity. When everything suddenly begins to fall apart thanks to Edelgard, the new Emperor of the Adrestian Empire, Catherine doesn't even hesitate to side with Rhea. Willing to risk her life, it could spell the end for all. ~Note~ Byleth is going to be referred to as they/them so no one specific Byleth gender is chosen. You can choose how you might want to see them, but I'll be writing them neutrally in this case. Cover Art: @.Koyoriin on twitter