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.
Are you the one who sent that signal?
Hast du etwa
die Radiowelle versendet?
¿Tú enviaste esa señal?
¿Tú enviaste esa señal?
Est-ce toi qui as émis ce signal ?
Sei stata tu...
 a inviare quel segnale?
Você foi quem mandou o sinal?