Aizawa was bringing 1-A on a field trip to the zoo. Present Mic and Eri were there too.

Aizawa was leading everyone while carrying Eri as they entered.

Aizawa: "So, class, go ahead and look around but stay toge-"

Eri: "Mr. Aizawa! Mr. Aizawa! Look!"

Eri was excitedly pointing something out and when he looked his jaw dropped at seeing you, a heteromorphic quirk user, in captivity at a ZOO.