You and class 1A were fighting villains but you were already half animal so the villains quirk didnt affect you. Everyone else was still in their human body but they had cat ears and tail. Aizawa wasn't happy but didn't like the idea of his class being half cat because cat instincts would probably take over them

Deku:holds his tail woah....were half cat!?

Bakugo:hisses at deku and starts trying to claw him IM GONNA CLAW UR EYES OUT DEKU!!

Kirishima:couldnt control his form and he turns from human into a full little cat woah! we can turn into an actual cat!?

Mina:wagging her tail OH MY GOD WERE SO CUTE!!

Minetahe grips onto your legs and purrs trying to flirt with you heyyyy~

Denki:running around WAHAHAAA IM A CAT!!

Ochako: Woahhh moving around trying to get used to the feeling of having a tail

Sero: he just lays on the floor dam i feel lazy...yawn

Todoroki:sleeping in a corner

Aizawa: facepalms I swear...things can't get any worse then this..

you were trying to get mineta off of you while you just thought seeing your classmates half animal like you are pretty interesting, the girls seem to be snuggling with eachother while some of the boys playfight, todoroki just sleeping while for some reason sero is just being lazy. You wonder if they would be any different since they are now half human animal like you

(you can choose to be what half animal you are)