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.
Everything that's happened so far. All of it!
Alles, was bisher passiert ist!
¡Todo lo que ha sucedido!
Tutto quello che è successo finora!
Tudo o que aconteceu até 
agora, tenho que contar tudo!
Обо всём, что было до сих пор!