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!
Hey, Mikuriya. That was
 a long bathroom break.
هذا أنت يا ميكوريا. كانت تلك 
.استراحة حمّام طويلة
Hey, Mikuriya!
Warst wohl eher kacken als pissen.
Oye, Mikuriya.
Tardaste mucho en el baño.
Eh, Mikuriya.
Has tardado mucho en el baño.
Mikuriya ?
T’es resté longtemps aux chiottes…
Ehi, Mikuriya. Sei stato in bagno una vita.
Ei, Mikuriya. Demorou no banheiro.
О, Микурия. Долго же ты на толчке сидел.