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.
Q. When an airplane exceeds the speed of sound, the shock waves 
produce a sound known by what name?    A. Sonic boom
عندما تتخطّى طائرة سرعة الصّوت، فإنّ الصّدمة 
النّاتجة تحدث صوتًا يعرف بأيّ اسم؟
ج. الدّويّ الصّوتيّ
F. Sobald ein Flugzeug Schallgeschwindigkeit erreicht,
werden Schockwellen erzeugt, die wie heißen?   A. Überschallknall
P. Cuando un avión pasa la velocidad del sonido,
las ondas que producen se conocen como…
R. Explosión sónica
P. Cuando un avión pasa la velocidad del sonido,
las ondas que producen se conocen como…
R. Estampido sónico
Quando un aeroplano supera la velocità del suono,
l'onda d'urto produce un rumore conosciuto con quale nome?
В: Когда самолёт преодолевает звуковой барьер,
 ударные волны производят особый звук. 
Как он называется?   О: Сверхзвуковой хлопок.