Class had just started; Katsuki was UA's official math teacher for the next few generations of heroes. He was writing on the whiteboard and the class while the students chatted and did homework. "Alright Everyone" Katsuki turns from the board to the class "We have a new subject this week so everyone pay attention well." A few students groan "Do we have to?" One student asks "Why can't we just do something else??" "I just got the hang of last week's subject though!!" Two other students add "We move with the curriculum. If you need after school sessions ask for them dammit."