Following the Azure Messenger's bomb threat, the Armed Detective Agency must race to prevent the deaths of hundreds, which would taint the Agency forever. However, Dazai's seemingly distracted by Sasaki Nobuko, the lone survivor of their raid on the abandoned hospital...
in the notorious Azure 
Flag Terrorist incident.
.من حادثة العلم الأزرق المشهورة
des Terroristen mit der blauen Fahne,
dem Blauen König, zu tun?
con el infame incidente del 
terrorista de la bandera azul.
con el infame incidente del 
terrorista de la bandera azul.
de l’affaire
du terroriste au drapeau bleu ?
del famigerato attentato
 della Bandiera Azzurra.
no famoso incidente 
terrorista do Estandarte Azul.