Soul Eater AU
But also not entirely Soul Eater AU. Not everything in Soul Eater* is applied in this story. I made up and added a bunch of things.
No heavy . Only small mentions of it. And I don't know whether this belongs in the fantasy or supernatural category. Maybe in between. Definitely a love story. Don't let the poster fool you.
*Soul Eater is a manga and has an anime based off of it