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.
If this keeps up and the future doesn't 
change, I'll lose my one reason for going!
Aber wenn ich nichts unternehme
und die Zukunft so eintritt,
¡Si no descubrimos cómo cambiar el 
futuro, perderé mi única razón para ir!
¡Si no descubrimos cómo cambiar el futuro,
 perderé mi única razón para ir!
Si on modifie pas le futur,
Se le cose restano così ed il futuro non cambia,
perderò la mia unica ragione per andarci!
Se continuar assim e meu futuro não 
mudar, perderei a minha razão para ir!
А если мы ничего не сделаем и не изменим
будущее, то эта причина исчезнет!