Koshiyama Shiki, a new enrollee at Buzou High School, is a bookworm and quite the introverted type. He even eats lunch in the school library. But at the ceremony to welcome new students, he found himself volunteered to participate in an impromptu quiz meet by the quiz bowl circle's leader, Sasajima Gakuto. Shiki knows the answers to all the questions, but it unable to buzz in quickly enough... until he notices a change in his classmate, Fukami Mari, who starts buzzing in to answer questions before they've even been read!
This may surprise you, but "7O3X" 
is also a quiz bowl term.
"7O3X" قد يفاجئك هذا ولكنّ عبارة
!هي عبارة لمسابقات الأسئلة أيضًا
Das mag dich überraschen,
aber „7O3X“ ist ein Quiz-Begriff.
Puede que te sorprenda,
pero 7O3X también es un término.
Puede que os sorprenda,
pero 7O3X también es un término.
D’ailleurs, 703X,
c’est une référence aux quiz.
Forse non ci crederete,
ma "7O3X" è un termine dei quiz.
Pode surpreender alguns, mas 
7O3X também é um termo de quiz.
Может вы удивитесь, но это тоже задачка.