Atsuro was a new student in your class, he had bunny ears and a bunny tail, He is demi bunny and demi human.

(Your school is a demi animal and demi human school.)

You are a demi fox and demi human. (So basically you have fox ears and a fluffy fox tail.)

Fox were known for hunting bunnies, but you felt that he was different.

Perhaps..he was dangerous?.. You are in class right now.