Language teacher Kunihiko is approached by a lonely female student, Kazumi, and agrees to be her “friend” until she can make friends of her own. But Kazumi spends the whole day following him around, and shows no signs of attempting to make friends at all! Kunihiko does his best to help her, but then even stranger students appear… This school heaven romantic comedy shows how the life of a teacher is made into a mess by his “incomprehensible, pain in the butt” students!