As Mari and Kouzuki Yuki are working at their part-time job in Akihabara to earn money for a buzzer set, Shiki and Inoue arrive in the area to train themselves with a quiz bowl game in the arcade. They're battling against a player called "Second Lieutenant Chisato" when Ashiya shows up, and the pair finds out that their opponent is someone they know quite well. Then a strange, somewhat suspicious character approaches the group...
"Plan"?! That wasn't a guess?!
!خطّة"؟! لم تكن تحزر فحسب؟"
„Plan“? Das war nicht geraten?
¡¿Plan?! ¡¿No fue suerte?!
¡¿Plan?! ¡¿No ha sido potra?!
Quoi ?
C’était pas au pif ?
Piano?! Non hai tirato a indovinare?!
Plano? Não foi chute?
План?! Ты не просто ткнул?!