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.
Yes. Last night, at 2:10 
Megafloat Japan Standard Time,
Ja, gestern Abend haben wir um
Sí. Anoche, a las 2:10,
hora del Megafloat japonés,
Sí. Anoche, a las 2:10,
 hora del Megafloat japonés,
La nuit dernière,
Sim. Noite passada, às 2:10 
no fuso da Megailha do Japão,