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A college-aged student teacher (played by Hwang Jeong-Eum) is assigned to a high school. Once she arrives murders start occurring in succession
Park Ji-Yeon | Hwang Jung-Eum | Yoon Si-Yoon | Park Eun-Bin | Kim Su-Ro |
Se-Hee | Eun-Soo | Kwan-Woo | Na-Rae | Mr. Cha (teacher) |
Son Ho-Jun | Ji Chang-Wook | Lee A-Jin | Yoon Seung-Ah | Nam Bo-Ra |
Jung-Bum | Soo-Il | Ji-Yoon | Tae-Yeon | Hyeon-A |
Kwon Hyun-Sang | Yeo Min-Joo |
JK | Yong-Ran |