Care of a Magical Creature (Mer Levi x Witch Reader)

Welcome to an "Attack on Titan" x "Harry Potter" crossover, starring you! The Sorting Hat has placed you in Slytherin for this one, so if you're typically in a different House, please pretend for now. Additionally, because you and Levi are both growing teenagers, I reserve the right to mess with your relative heights...

The 5th Ackermann

(AOT/SNK boys x reader) Y/n Ackermann. A young girl who lives in the deadly underground with nothing but a knife and her older brother, Levi. They want to go to the surface and get out of the slums. How could they reach such a miraculous PARADISe with almost nothing but each other? *This story is technically finishe...