The girl Shiki met in the library was the same girl that he had seen riding on the back of Sasajima's bike. The book she left behind has a marker stuck to the page on building quiz bowl buzzer systems. Is she involved with quiz bowl? As Shiki is thinking about all his, Mari tells him they're having a joint quiz bowl practice with another school today. That school turns out to be Miyaura High, the team that claims Mikuriya as a member!
Just so ya know, you can trust Sasajima Jinko,
 the human low-current electronic device,
لمعلوماتكم فقط، يمكنكم أن تثقوا بساساجيما 
،جينكو، الجهاز الإلكتروني البشري منخفض التّيّار
Ihr könnt euch voll auf Sasajima Jinko verlassen,
Die menschliche Schwachstrom-Maschine,
¡Para que lo sepan, confíen en
Jinko Sasajima, la de baja corriente,
¡Confiad en Jinko Sasajima,
la reina de la baja corriente,
Voilà la pro de l’électronique
qui va s’occuper de vos buzzers.
Aprite bene le orecchie!
Podem confiar em Jinko Sasajima,
 o circuito humano,
Вы можете доверить вашей покорной 
«малоамперной» слуге Сасаджиме Джинко