The Nine Schools Competition begins, and Shizuku goes head-to-head with Shiori in the Speed Shooting tournament. Shiori utilizes the “Arithmetic Chain” magic sequence which allows her to perform mathematical calculations faster than a supercomputer. Shiori left her own broken family to join Airi’s team, and her determination to win drives Shizuku into a corner. Honoka and her friends nervously watch the match, but Miyuki says, “Who do you think Shizuku’s engineer is?” with a confident smile. Just as she has predicted, Tatsuya has a secret tactic up his sleeve to bring victory to Shizuku.
What Airi was seeking was a talented partner
worthy of the Isshiki Family.
ما كانت تبحث عنه آيري هو شريك 
.موهوب يستحق عائلة إيتشيكي
Airi wünscht sich talentierte Kameraden,
die dem Hause der Isshikis gerecht werden.
Airi está buscando
a alguien digno del clan Isshiki.
Airi buscaba a alguien digno
de la familia Isshiki,
Airi voulait une camarade talentueuse,
digne de la famille Isshiki.
Airi buscava uma parceira talentosa,
adequada para o clã Isshiki.