TRIGGER goes missing when they're scheduled to perform at the Tokyo International Music Art Festival, so IDOLiSH7 and Re:vale work together to look for them. Ryunosuke is rescued sooner than the others thanks to Nagi's quick wits and rushes to Zero Arena, but...
That's an abacus school.
هذه مدرسة مِعداد
Das ist eine Abakusschule.
Es una escuela de ábaco.
C’est une école de cours du soir.
Quella è una scuola d'abaco.
Esta é uma escola de ábaco.
Это школа счёта.