I had an interesting idea for a future superhero story. I am thinking of creating a dystopian world where the population is mostly human, but there are superhumans that fuel their powers by feeding on human flesh. The superheroes feed on criminals while the supervillains feed on whoever they choose. The idea of feeding on human flesh to fuel their powers will add some moral ambiguity in the superhumans. I will be drawing inspiration from the grim world we live in to write this story.