Yamiyume Yamii

 (病夢やみい) is a former member of CY8ER.

She joined the group on May 4, 2017 and was part of it until its disbandment, on January 10, 2021.

Albums

 * Hello New Generation
 * Tokyo

Singles

 * Kakusheemu
 * Dead Boy, Dead Girl
 * Time Trip
 * Summer / Sayonara Flashback

Digital Singles

 * Hakuchuumu
 * Bye Bye.
 * HANNARI
 * GOOD LUCK