Kim Hye-in has to transfer to Cheongdam International High School after witnessing a murder. She crosses paths with Baek Je-na, a bully who happens to be connected to the case.
Lee Eun-saem
Kim Hye-in
YERI
Baek Je-na
Lee Jong-hyuk
Seo Do-eon
Park Si-woo
Min Yul-hee
Jang Sung-yoon
Kim Hae-in
Jang Se-hyuk
Park Woo-jin
Kim Min-kyu
Cha Jin-uk
Won Gyu-bin
Lee Sa-rang
Oh Ji-ho
Seo Hui-kwon
Heo Hyun-seo
Bae Young
