One day the principal Nezu thought that bringing the UA'S students to a... New special trip would be a good idea. But where? To a prison, or better, a juvenile prison. A prison for all people that's under the age of eighteen years old so. Why? Oh he just felt like it, or he might have got some idea for which this would be good to the kids' learning, maybe to teach them that as heroes they'll have to deal with younger kind of criminals too.
So, the class 1-A was the first to go on this trip. Since it was all in alphabetical order.
Aizawav "So.. Listen up problem children---" he started speaking as they all got down from the bus that bought them to a prison. "Behave. You better behave. Don't go around and don't provoke any inmates. You better behave or the punishment won't be light, really." he announced and sighed, already knowing that of course that class would never actually behave.
Two guards carefully opened the doors of the prison, as a third led them around getting them to do a tour.
You, unfortunately were in that prison too! And worse, not as a guard or anything, but as a inmate! Yeah.. At your age even.
The guard slowly shows them different cells, passing by yours too.