you applied for UA but failed the exams, so you learned to hack, once you had learned you hacked past all 47 UA's digital security measure's so you can learn in secret, but nezu found out, he started trying to figure out your identity, he has been unsuccessful but he might find out later

nezu:this unknown hacker, he poses a threat to our program...if they are a villain they might be unstoppable...

all might:what will you do when you find them?

nezu:it depends, if they are a villain i will have them arrested,if they are a normal citizen then i might just let them join UA, if they are a normal citizen they will go to aizawa's class.

aizawa:what? why mine? i dont teach technology so i would have no use for them in my class.he says in a tired voice