Opening S00 E01

Choi Daniel (as Choi Jin-wook) Jang Na-ra (as Lee So-young) Ryu Jin (as Ji Seung-il) Kim Min-seo (as Kang Yoon-seo) Clara Lee (as Choi Seul-ah) Oh Yeon-seo (as Lee So-jin) Ahn Seo-hyun (as Ji Hyun-yi) Kim Kyu-chul (as So-young's father) Kim Hye-ok (as Jung-ok) Na Young-hee (as Managing Director Hyun Ji-sook) Yun Ju-Sang (as Jin-wook's father) Kim Mi-kyeong (as Director Baek)