Shigaraki, Kurogiri and Nomu showed up at the USJ training centre. You're trying your best to get rid of all the other villains before pausing in horror as you see Shigaraki and aizawa fight which ends up with aizawa getting harmed.

whilst Shigaraki fights aizawa he doesn't seem to realise that he's putting you in danger by being there since he didn't know that it was your class