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.
The Tokyo Float...
Das Tokyo Float …
El Float de Tokio…
El Float de Tokio…
Cette île artificielle…
L'isola artificiale di Tokyo...
A Ilha de Tóquio...