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.
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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.
| Actor | Role |
|---|---|
 Lee Eun-saemKim Hye-in | Kim Hye-in |
 YERIBaek Je-na | Baek Je-na |
 Lee Jong-hyukSeo Do-eon | Seo Do-eon |
 Park Si-wooMin Yul-hee | Min Yul-hee |
 Jang Sung-yoonKim Hae-in | Kim Hae-in |
 Jang Se-hyukPark Woo-jin | Park Woo-jin |
 Kim Min-kyuCha Jin-uk | Cha Jin-uk |
 Won Gyu-binLee Sa-rang | Lee Sa-rang |
 Oh Ji-hoSeo Hui-kwon | Seo Hui-kwon |
 Heo Hyun-seoBae Young | Bae Young |