In a twist of fate, Fuyuki Hinata ends up enrolling in Yokai Academy, which is a highschool for monsters! After meeting Tsukune Aono and his friends, Fuyuki will have to survive the school or risk being exposed as a human and killed on sight. And to make matters worse, Natsumi, Saburo, and Koyuki end up being enrolled as well, along with ARMPIT Platoon joining the fray.