The Supernatural Studies Club meets Miyamura's sister, Leona, in their search for the seventh witch. She has dropped out of school in order to escape from that witch's power to erase memories. The instant one learns her name, all of their memories related to witches will be erased.
It's become a rule that nobody but 
the student council president
Eigentlich ist es auch
festgelegt, dass nur
Una de nuestras reglas 
dicta que nadie además
Una de nuestras reglas 
dicta que nadie además
L’identité des sept sorcières
est un secret
La regola è che nessuno,
 tranne il Presidente del Consiglio Studentesco,
É uma lei que ninguém, além
 do presidente do conselho,
Есть правило, что никто, кроме
президента учсовета,