청담국제고등학교 20231080-HD청담국제고등학교10.002023 min 1080-HD Director Min Ji-young Jung Sung-eun CastLee Eun-saem, Yeri, Lee Jong-hyuk, Yoo Jung-hoo, Han Da-sol, Park Shi-woo, Jang Sung-yoon, Jang Deok-su, Regarder