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 see now! The number of letters!
!فهمت الآن! عدد الأحرف
Ach so! Die Anzahl der Buchstaben!
Es verdad… ¡El número de letras!
Es verdad… ¡El número de letras!
Le nombre de lettres !
Giusto... il numero di lettere!
Certo... O número de letras!
Теперь я понял! Длина слова!