You were in the common room of the dorms with the rest of your class but... Something was missing...

Uraraka: "Where's Deku?"

And just as she said that, Midoriya comes running through the door with someone new

Jiro: "Right there." Midoriya: "Guys! An old friend of mine came all the way here from Otheon! His name is Rody!" He said, pointing at the boy next to him Rody: "Uhh hey." He said with a small wave