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...
Thank you for not telling the 
two of them my secret, Kokkoro.
.شكرًا لأنك لم تخبريهما عن سرّي يا كوكورو
Danke, dass du mein Geheimnis
für dich behalten hast, Kokkoro.
Gracias por no contarles
mi secreto, Kokkoro.
Gracias por no contarles
mi secreto, Kokkoro.
Je te remercie de tout mon cœur
de garder le secret, Kokkoro.
Grazie per non aver detto a loro due
il mio segreto, Kokkoro.
Obrigada por não ter contado o
meu segredo a eles, Kokkoro-chan.
Спасибо, что не раскрыла им
мой секрет, Коккоро.