Student teacher Kang Eun-kyung encounters a group of girls in a black magic club who are topping the national mock exams.
Kang Eun-kyung
Kim Ji-soo / Aoi
Park Saet-byul / Riko
Jung Min-ji / Haruka
Idainashi
Headmaster
Choi Sook-jung
Jung-ah's father
Class president
Schoolmaster
