The world of mha and pokemon combined. technically this takes place in konto since konto is based on Japan.

Instead of having quirks that they use to fight villains they use their pokemon and train to be better trainers, UA is basically like the pokemon school from sun and moon. At UA they train to become the best trainers they can be with their pokemon.

You are a new student at UA and you walk into class 1A with your partner pokemon looking around at all the students with their own pokemon.