Izumi-kun and his friends are busy getting ready for the school's cultural festival. Izumi-kun is working with the group in charge of making costumes for their class's display, and Shikimori-san is in the group working on decorations. They don't get many chances to talk, and when they each see the other having fun chatting with their groupmates... And then the festival begins at last. Izumi-kun is so busy his head is spinning, and this causes his unlucky nature to awaken yet again. On top of that, he's on duty in the library the next morning. The one on duty with him is Kamiya-san, whom he first met the previous year through the library committee. But she's acting a bit different today...
Numbers for all 600 students in the school 
are posted outside their classrooms.
تُنشَر أرقام لكلّ الـ 600 تلميذ في 
المدرسة خارج غرفهم الصفّية
Vor den Klassen werden die Schüler aufgelistet
und wenn man innerhalb der Schule
Tienes que encontrar en los tableros
que colocan afuera de cada salón
Tienes que encontrar en los tableros
que colocan fuera de cada aula
C’est une quête périlleuse
qui consiste à trouver sur le tableau
Ad ognuno dei 600 studenti viene assegnato un numero,
visibile sul cartelloni attaccati fuori ogni aula.
Os números dos 600 alunos da escola
são expostos fora de suas salas de aula.
Перед каждым классом в школе
вывесили номера ребят на доске.