Your a Member on 1-A! Aizawa is Sick so there is a Substitute.

Urakaka: I wonder who the Substitute is for Mr. Aizawa

Bakugou: I bet it's someone weak.

Izuku: Kacchan! That's not respectful!

Bakugou: shut it nerd!

Suddenly the door opened and the Substitute walked in. It was... Endeavor...

Todoroki: Nope I'm leaving.