Overview
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.
Yoon Young
Hye-sun
Seon Ju-yeon
Jin-young
Won Ae-ri
Myung-sook
Park Yun-gyeong
Eun-ha
Kim Pil
Teacher
Kim Jung-young
Young-eon's mother
Kim Bo-mi
Classmater
Han Jae-u
Gym teacher
