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...
Also, well... I-It's my first time 
going somewhere with a friend.
إضافة إلى... أ-أنّها أوّل مرّة أذهب
.فيها لمكان ما مع صديق
A-Außerdem … bin ich zum ersten Mal
mit einem Freund aus.
Y también… es la primera vez
que salgo con un amigo.
Y también es la primera vez
que salgo con un amigo.
C’est même…
Ah, e poi... è... è anche la prima volta
che esco con un amico.
Também é a primeira vez 
que venho com um amigo.
И ещё... хм... Это моя первая поездка 
куда-то вместе с другом.