The boys are so crazy about their teacher, Mr. Aizawa, that they can't concentrate on their studies. One day, one of them sneaks in and makes a naughty request! "Can we keep it a secret?" Mr. Aizawa answers the request, but he has a dick between his legs!? He even loses his anal virginity and has multiple female orgasms! Gradually, the boys are drawn into the pleasure of reverse anal...!?