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...
If he got serious, he could
 become a lot better.
.إن تصرّف بجدّيّة أكثر، بإمكانه أن يصبح أفضل
Wenn er ernst macht,
wird er noch viel besser.
Si se lo toma en serio, mejorará.
Si se pone en serio, mejorará.
S’il s’y met vraiment,
il peut devenir encore plus fort.
Se la prendesse seriamente,
sarebbe molto più bravo.
Se ele levar a sério, 
pode ficar bem melhor.
Если он будет собранным, 
он станет более сильным.