every year, UA has a music festival that allows everyone, even villains and Vigilantes and obviously heroes, this time of year is the only time no crime in Japan happens and no one dares to disobey the rules of the festival, such as no arresting/capturing, no harming and no risk of harming the crowd, you are a vigilante, a very much wanted Vigilante, you had to make a deal with principal Nezu to be able to join