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...
I-I'm sorry! I said too much...
...أ-أنا آسف! قلتُ الكثير
T-Tut mir leid.
Ich hab mich verplappert …
¡Lo siento! Me excedí…
Lo siento. Me he pasado…
M-Mi dispiace, ho esagerato...
D-Desculpe, eu exagerei...
И-извини, я забылся.