37.
At some point, he loses track of when, he gets an apprentice, a sidekick.
Nighteye is bright-eyed and bushy-tailed every day. He absorbs all the information he's given and while he doesn't rely too much on his Quirk, that's for the best. The boy's plenty smart without it.
He has a frequently broken nose and thin, razor sharp glasses. He looks harmless compared to All Might himself.
This is a bad idea, this is a terrible idea. But he has it. So he's gonna use it.
Heroes could die at any time.