Harp+y 4

Harp+y 4 is an idol group which is targeted by the Gamma.

Members

 * Honami
 * Yū
 * Mari
 * Ako
 * Akari Tsukimura

Appearances

 * Kamen Rider Ghost
 * Episode 36: Furious! Idol's Declaration!
 * Episode 37: Learn! All the Ways!