I Love English in Japan ("What Kind of School?" Edition)

Below is a box of Japanese snacks called Toppa. Toppas are like a hollow pretzel filled with chocolate (they might come in other flavors too, but I have never personally bought them). Anyway, this past week Sarah discovered this English mistake. Can you find it?


Of course the real question is, "What are they really trying to say?" At first I thought it might be an advertisement for the movie "School of Rock" but the picture on the back of the box was of Japanese students. Also, there was an additional promotion for a good-luck charm. You see, right now in Japan, students are studying diligently for their school entrance exams. So I am guessing the models were wanting to be "lucky" and not "locked out." But then again, who knows....