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!
Did that kid who shared his 
lunch with me pick it up?
هل هو مع ذلك الفتى الّذي شاركني غداءه؟
Hat der Junge, mit dem ich
schnabuliert habe, es mitgenommen?
¿Lo tendrá ese chico?
¿Lo tendrá ese chico?
C’est sûrement le gars
qui m’a filé son repas…
L'avrà preso quel tipo
che ha smezzato il pranzo con me?
Ficou com aquele cara que
 dividiu o almoço comigo?
Может, её взял парень, 
который поделился обедом?