It's almost Christmas in Akihabara.  At Lenessia's mansion, Marie and Henriette are all visiting.  Lenessia is smiling, but she can't open herself up to the adventurers because of how different they are.  Akatsuki, who has been tasked with guarding the princess, is the only one who isn't having fun.  She thinks of Shiroe and worries about her own powerlessness.  Then, in Akihabara in December, a shocking event occurs.
Why don't we all have a party on Christmas Eve?
Lasst uns am Heiligabend
eine Party feiern.
¿Por qué no hacemos una 
fiesta de Nochebuena?
On pourrait fêter la veille de Noël
tous ensemble.
Perché non facciamo una bella festa alla Vigilia?
Por que não fazemos uma festa de véspera?
А может, устроим 
рождественскую вечеринку?