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.
Was this the pleasure and 
excitement Sis was talking about?
Ist das die Lust,
von der Schwesterchen sprach?
¿Este es el placer
del que hablaba Reiri?
¿Este es el placer
del que hablaba Reiri?
L’excitation et le plaisir…
C’est ce qu’a dit Reiri !
Era a questo tipo di eccitazione
 che si riferiva mia sorella?
Esse é o prazer e excitação
 que a Nee-chan falava?