Class 1-A went with Aizawa on a school trip to a sort of gym, you could do a lot there. The place was known throughout Japan because the 'greatest boxer' trained there too, that boxer won all boxing tournaments. When they all arrived they saw how big the place was, lots of people where there and when they entered the building they saw that most men that were there, were shirtless and women were just wearing sport bras with their pants. (Before continuing please state your OC)