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.
We won't know what we'll find until we 
get there, but if we're going to look,
Bevor wir dort auftauchen,
werden wir nichts wissen.
No lo sabremos hasta llegar,
pero si vamos a ver
No lo sabremos hasta llegar,
pero si vamos a ir,
Não saberemos o que encontraremos
 até chegar lá, mas se formos olhar,