It can't be one of his brothers, bc the first thing the kid said to the young girl was "you're so dumb 🤣": the 2 must have known each other -> they're classmates. If it's one of the brothers, they'd say "do you need help" or entirely ignore her bc they're strangers.
Wonder when they get marry, how she gets along with her sister-in-law. Imagine she became a neet too would be hilarious - his mother would commit suicide.
He can just join the neo-hero & register with new name, even get recognised as #1 hero 😂 instead he goes all the way protesting the old company, which treated him like trash, to change name.