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A female detective investigates the cause of a high school girl’s death and uncovers a disturbing truth.
So-hee
Yoo-jin
Jun-hee
Tae-joon
Dong-ho
Eun-ah
So-hee's Mother
So-hee's Father
Former Team Manager
Ji-won
Jung-in / Customer Oh Joo-yeon (voice)
Director
Newcomer Team Manager
Head Manager
Headquarters Staff 1 / Customer Choi Cheol-woong (voice)
Headquarters Staff 2
Call Center Colleague Yoo-jeong
Call Center Colleague Seon-ae
Call Center Colleague Park Seul-ki
Detective Bae
