Himekawa is a guilt-stricken by her failure to protect the citizens as they boarded the Tokyo megafloat.  When a mysterious radio signal is picked up by Atraxia, she leaps at the change to perhaps finally save a civilian.  But when Amaterasu arrives at the source of the signal, they find an enemy from another world, and one deeply connected to Himekawa's past.
...is to determine the source 
of the radio waves.
sollt ihr den Ausstrahlungsort
der Radiowelle entdecken.
determinar el origen de la onda.
determinar el origen de la onda.
sera de l’identifier.
sarà scoprire l'origine di quelle onde radio.
é determinar a fonte das ondas de rádio.