Iron Maiden

AU where Mei Hatsume strives to be a hero but is rejected from entering the Hero course due to her weaker Quirk. She nearly gives up her dream, until one day she meets an old hero who shows her that heroes aren't just made, but they can be built as well. And that man is none other than Tony Stark AKA, The Iron Man (Mei Hatsume as Iron Man. Changes made to her character.)