Yuzuko and Momoko line up to get sweet potatoes from the school store. Momoko runs into Nagiko there, and through a serious of events, Momoko ends up believing she's being disrespectful to girls in the other grades. Meanwhile, the occult club tries to solve a riddle...
That's not a joke!
Diesen Eindruck macht es aber nicht!
¡No parece que fuera una broma!
¡No parece una broma!
Ça ne fait pas rire !
Questo non è uno scherzo!
Isso não pareceu uma brincadeira!