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...
You went to the rainbow silkworm nest?!
!ذهبت لعشّ دودة قزّ قوس قزح؟
Du bist also zum Nest der
Regenbogenraupen gegangen?
¡¿Fuiste al nido
del gusano de seda arcoíris?!
¡¿Fuiste al nido
del gusano de seda arcoíris?!
C’est toi qui as trouvé
la soie arc-en-ciel ?
Sul serio sei andato 
nella tana dei bachi da seta arcobaleno?!
Você foi ao ninho do
bicho-da-seda do arco-íris?!
Ты залез в гнездо радужного шелкопряда?!