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.
Kim Hee-ae
Ryu Hyun-sook
Ko A-sung
Lee Man-ji
Kim You-jung
Kim Hwa-yeon
Kim Hyang-gi
Lee Cheon-ji
Yoo Ah-in
Choo Sang-bak
Sung Dong-il
Kwak Man-ho
Chun Woo-hee
Kwak Mi-ran
Yoo Yeon-mi
Kwak Mi-ra
