While practicing after hours in her high school, an aspiring singer is mysteriously killed and her body vanishes. Her invisible ghost is trapped in the school, but her best friend is able to hear her voice.
Kim Ok-vin
Young-eon
Seo Ji-hye
Seon-min
Cha Ye-ryun
Cho-ah
Kim Seo-hyung
Hee-yeon
Lim Hyun-kyung
Hyo-jung
Jeon Yeo-jin
Hwa-jung
Lee Eun
Mi-hee
Yoon Young
Hye-sun
