Today you all met up with your history teacher, it was Middle Ages themed, so she walks in, and you guys get assigned dresses to try corsets, and the guys are in another room, Momo gets a red dress, Jirou purple, Ochaco White, Tsuyu green, etc. after the dress it was time for the corsets, and they were struggling, and those who managed to, ripped it off, cause it hurt, but you're a cosplayer, so this is easy