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?
Let's celebrate the anniversary of
the birth of Gai, Kei, and Nayuta!
Portons un toast pour l’anniversaire
de Gai, Kei et Nayuta.
Propongo un brindisi, all'anniversario 
della nascita di Gai, Kei e Nayuta!
Então, em comemoração ao
aniversário de Gai, Kei e Nayuta...