title Cinderella Girls Dere Sute Night x12 date/time 2017.08.16 21:00- (around one hour) broadcast niconico seiyuu Miyake Marie (三宅麻理恵) Waki Azumi (和氣あず未) Matsuda Satsumi Morino Mako Yamashita Nanami (山下七海) Ohzora Naomi (大空直美) video Ohtsubo Yuka (大坪由佳) Takeuchi Shunsuke

This was a live niconico broadcast to commemorate the new CDs and bluray for Idolmaster Cinderella Girls.

The seiyuu participants were Miyake Marie, Waki Azumi, Matsuda Satsumi, Morino Mako, Yamashita Nanami, and Ohzora Naomi.

The Cinderella Girls CDs Starlight Master 12, and Master Seasons Summer went on sale 8/9.

During the broadcast, there was a video "Countdown Station" by Ohtsubo Yuka and Takeuchi Shunsuke. They introduced the live bluray box (7 discs) "Cinderella Girls 4th Live TriCastle Story" going on sale 8/30.