Midway through summer vacation, 36 students, some with newfound super-powers, find themselves all alone in their high school, adrift in a black void, unable to contact the outside world. Some students try to impose order, but are faced with opposition.
"This is Class 2-3-2 Student Council
representative Tanigawa.
It has been seven days since
the school was surrounded in darkness."
.معكم تانيغاوا، ممثل مجلس طلاب الفصل 2-3-2" 
لقد مرت سبعة أيام منذ أن"
".غاصت المدرسة في الظلام
Hier ist Tanikawa von der Schülervertretung.
Unsere Schule ist jetzt schon 7 Tage
in diese Finsternis gehüllt.
Soy Tanigawa, del consejo estudiantil.
ÉLÈVES DE LA 3E 2, ICI TANIKAWA DU
 BDE. ÇA FAIT 7 JOURS QUE LE COLLÈGE 
EST ENTOURÉ D’OBSCURITÉ.
AQUI É TANIGAWA E HÁ SETE DIAS...