When Akari opens the fridge, she sees that there is no more blood.
But when Sophie tries to order it on her regular delivery site, she's met with a note that the service is currently inoperational.
Searching on other sites doesn't yield any results either. The next idea is to have Erie share some of hers, but she's also out.
Everybody is agonizing about what to do when Erie starts talking about finding a human downtown who wants to have their blood sucked...
I get it. The reason you don't 
want to drink my blood is
فهمت. سبب امتناعك من شرب دمي
Verstehe.
Comprendo, no quieren beber mi sangre
Comprendo, no queréis beber mi sangre
D’accord.
Ho capito. Non vogliono bere il mio sangue
Entendi. Então o motivo para
vocês não beberem do meu sangue
Вот как. Так вы не хотите пить 
мою кровь,