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 why we're used to speaking 
frankly with each other.
Deshalb sind wir es gewohnt,
so miteinander zu reden.
Por eso siempre nos hablamos 
así entre nosotras.
Por eso, siempre hablamos 
así entre nosotras.
C’est pour ça qu’on est habitués
à se parler franchement.
Per questo siamo abituati a parlare
francamente tra di noi.
É por isso que costumamos conversar
 daquela forma uma com a outra.