
The kind of lies we always tell the kind that we want to expose.
Cheon-ji's unexpected suicide causes her mother Hyeon-sook and older sister Man-ji to be moved into another apartment. Tracking down clues from school, Man-ji discovers that Cheon-ji's best friend Hwa-yeon is behind everything.
Choo Sang-bak

Sung Dong-il
Kwak Man-ho

Chun Woo-hee
Kwak Mi-ran

Yoo Yeon-mi
Kwak Mi-ra

Kim Jung-young
Hwa-yeon's Mother

Lee Jae-gu
Hwa-yeon's Father

Kyul Hwi
Mr. Park

Kim Ji-hoon
Kim Ji-hoon