Once, Rui has aimed at a singer. However, now, she was frustrated and was doing the hostess's work in the country. When Rui goes home together with a friend's Tsunko, She met Momoko, the rival at the time of her having aimed as a singer. Momoko became an idol singer and was successful. On the grounds that Momoko has ridiculed Rui, Rui killed two friends, her and her. In order that Rui may escape a crime, She formed the idol group together with Tsunko pretending to be Momoko and others.
Idol is Dead is the second studio album released by Japanese idol group BiS on October 28, 2012. It is their first original album released on a major label, as well as the first full album released with the "Quintet" lineup. The album continues the style of BiS's previous releases, containing songs of different types of rock. It also continues the tradition of their studio albums containing a cover, in this case Shinichi Osawa's "Our Song", arranged in a Shoegaze style. The four tracks from their independent label days have been re-recorded.