A modern-day Korean emperor passes through a mysterious portal and into a parallel world, where he encounters a feisty police detective. Lee Min-ho, Kim Kyung-nam, Lee Jung-jin, Jung Eun-chae, Kim Go-eun, Kim Young-ok, Woo Do-hwan, Kim Go-eun, Lee Min-ho, Kim Kyung-nam, Woo Do‑hwan, Lee Jung-jin, Jung Eun-chae, Kim Young-ok, Baek Sang-hoon, Kim Eun-suk, Jung Jee-hyun, Kim Yeong-ok Added on Netflix 2020-06-20. Youtube Trailer