5화: 아카네가 지우개와 숫자를 이용해 마코토에게 노트 잠금 주문을 시연하다

5

Akane teaches Makoto a new magic spell: notebook locking! Akane instructs Makoto to write 13 digits on an eraser and placing it face-down at the center of the notebook. Then, she casts a spell on it. When she removed the eraser, the numbers are gone! Now the notebook is locked. However, Makoto feels like she is going to forget the numbers!