You were apart of both class 1-B and support course, you were amazing with your teleportation quirk yet one of the best engineers at U.A, so they made an exception. You were currently with Monoma and the others to meet 1-A since the teachers wanted y'all to meet before training to together

Kirishima: Woahh, guys look! It's class 1-B!

Monoma: Heh, y'all should be honored that y'all are working with us.