Mikuriya's declaration of war to Shiki rings in his ears: "Don't forget about the regular meet!" The regular meet is a regularly held quiz bowl tournament hosted alternately by several area schools. This year's host is Asagaoka Girls' High School. It's been decided that all the members of Buzou High's quiz team, so they're beginning a rigorous practice schedule. Meanwhile, Mari is asked why she got into quiz bowl, and tells the story of how her brother, Fukami Shinji, influenced her love of the activity.
When an airplane exceeds the speed 
of sound, the shock waves—
،عندما تتخطّى طائرة سرعة الصّوت
—فإنّ الصّدمة النّاتجة
Sobald ein Flugzeug Schallgeschwindigkeit
erreicht, werden Schockwellen …
Cuando un avión pasa
la velocidad del sonido, las ondas…
Cuando un avión pasa
la velocidad del sonido, las ondas…
Quand un avion franchit
le mur du son, l’onde de choc…
Quando un aeroplano supera
la velocità del suono, l'onda d'urto—
Quando uma aeronave ultrapassa
 a barreira do som, as ondas de...
Когда самолёт преодолевает 
звуковой барьер, ударные волны...