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.
All right, it's settled! 
I'll restore Shiraishi's memory!
Gut, klarer Fall!
¡Está decidido! ¡Recuperaré 
la memoria de Shiraishi!
¡Está decidido! ¡Recuperaré 
la memoria de Shiraishi!
Va pour cette piste.
Bene, è deciso! 
Farò tornare la memoria a Shiraishi!
Certo, está decidido! 
Vou restaurar a memória da Shiraishi!
Решено! Я верну воспоминания Сираиси!