Juusan has a face of a pig and wears a nun costume with a cross necklace.
- Her name "Juusan" means the number "thirteen".
- According to Chapter 104, she seems to be waiting with Juushichi, not showing movement in particular, Ni and Juuroku also stopped assassination of the magical girl by Kayo Komura in Chapter 84, waiting without showing movement in particular was.
|Administrators||Ichi | Ni | San | Shi | Go | Roku | Nana | Hachi | Kyu | Juu | Juuichi|
Juuni | Juusan | Juushi | Juugo | Juuroku | Juushichi | Juuhachi
|Others||A | The King of Ancient Humanity|