The Proper Hero ; A black butler & MHA crossover

If you ask a child who Ciel Phantomhive was they probably couldn't tell you the answer even if they did give you the answer they'd say something about toys , but if you asked an adult they'd tell you he's a kid who owns a company because his parents died and he's has quite the powerful quirk, no one sees him often but when they do he's with a tall man in a suit. What happens when he applied for U.A?