Yumemi is a middle schooler who asked the Prism unit Cosmos to let her become their apprentice. She has a great passion for astronomy.

Three years after the events of "Pretty Rhythm: Aurora Dream," Aira, Mion and Rizumu have grown up and tutor a new group of aspiring idols: Karin, Reina, Mia and Ayami, who form the Prizmmy&#9734;. Teenage girls from Korea, named Somin, Shiyoon, Haein, Chaekyung and Jae Eun (who are the PURETTY), appear as a rival group. 

[Profile](http://earlywing.co.jp/talent_w/otsuboyuka.php) | [Twitter](https://twitter.com/00tsubo_yuka) | [Spotify](https://open.spotify.com/artist/43ZsqoTPYf5cc4ae3KPVuU?autoplay=true)

Yuka Ootsubo is a Japanese voice actress and singer affiliated with Early Wing. In 2014, she started her career as a singer by joining the band SmileY inc. with Vocaloid musician Yuuyu-P. She also did the voice of Vocaloid character Azuki Masaoka for V4.

__Non-anime roles:__
- Kaalaa Baunaa - Reverse 1999 (VG)