One day, Yuuki heads out to deliver an item to a client. When Pecorine and the others meet up with him, they discover that the client is Tsumugi, a member of the popular idol group Carmina, and Yuuki is being made to wear a cute outfit at her behest. The group is naturally confused, but there seems to be a reason behind it...
and became monsters that 
exist only to kill humans...
...وأصبحت وحوشًا وجدت لقتل البشر فقط
und wurden zu Dämonen,
die nichts weiter tun, als Leute zu töten.
y se volvieron monstruos asesinos.
Quién lo diría.
y se volvieron monstruos asesinos.
Quién lo diría.
échappent au contrôle de Sa Majesté
pour devenir des tueurs…
e sono diventati mostri
votati unicamente a uccidere uomini.
e se tornaram monstros que existem
apenas para matar humanos...
В итоге стали монстрами,
которые только убивают людей.