So Guest is a 17 year old civilian and is just a normal person but is also very powerful but it never looking forward to be a hero and just wants to be a normal person.

So Guest was walking with a friend and past an alley, a villain captured Guest’s friend and Guest ran in there. A civilian noticed this and called a hero, Aizawa was on top of a building but before he went, he noticed Guest getting the villain and reported this to Nezu who know wants Guest as a student in U.A. by force.