Whispers in the Darkness

Antisepticeye and Darkiplier (not Dark Septiplier). Not set in our world (for the majority of the story), has magic and stuff.
Just a warning, this may or may not get pretty dark.

Luna's life isn't exactly 'normal' her parents are people you would call sorcerers. They don't belong in the normal human world but the world they once lived has been taken over by the Darkness and is unsafe for young children. When Luna turns 16 she is to cross to this world to not return until she decides to have kids of her own. As at 16 her abilities start showing which is also too dangerous because Luna herself isn't what her parents expected her to be.