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...
He must have picked "Lifestyle" because 
he thought you two would be bad at it.
"لا بدّ أنّه اختار فئة "أسلوب الحياة
.لأنّه اعتقد أنّكما ستكونان سيّئين فيها
Der hat bestimmt nur „Lifestyle“ gewählt,
weil er dachte, ihr seid schlecht darin.
Eligió estilo de vida
pensando que no saben de eso.
Habrá elegido estilo de vida
pensando que no sabéis de eso.
Lifestyle, il doit penser
que c’est votre point faible.
E ha scelto "lifestyle" perché pensa
siate scarsi in quella categoria.
Ele deve ter escolhido Estilo de vida 
porque acha que vocês não vão saber nada.
«Общие знания» — это то, 
с чем можете не справится.