If you ever catch yourself thinking that your fanfic premise is too stupid to actually write, remember: Thomas Harris, author of The Silence of the Lambs, recipient of multiple prestigious literary awards both American and international, and widely regarded as one of the finest suspense writers of his generation, once wrote a book about sexy teenage Hannibal Lecter killing Nazis with a katana.
The resulting film adaptation made eighty million dollars.
This is your standard for comparison. Now: is your idea really that stupid?
What fucking film are you referring to
Hannibal Rising, I think.