Episode 1 S01 E01

Shin Ye-eun (as Ok Chan-mi) Lomon (as Ji Soo-heon) Seo Ji-hoon (as Seok Jae-beom) Chae Sang-woo (as Ki Oh-seong) Lee Soo-min (as Gook Ji-hyun) Chung Su-bin (as Tae So-yeon) Kim Joo-ryoung (as Jin So-jeong) Wooyeon (as Hong Ah-jung) Jin Ho-eun (as Sa Joong-kyung) Yeon Oh (as Lim Seung-woo) Ok Jin-uk (as Ma Nak Joon)

high school bullying revenge