There's a new special mission involving the usual Yatagarasu members, but Gai, Kei, and Nayuta are kept in the dark. The members go out of their way to keep this mission top-secret, but will they be able to keep the AIs out of the loop for long?
And you haven't talked to them since.
That must be so hard...
Und seitdem hattet ihr
keinen Kontakt mehr.
No hablan desde entonces.
No habláis desde entonces.
Et depuis, plus de nouvelles.
È da allora che non parli 
con nessuna delle due.
С тех пор не виделся и не говорил...