Korean emperor Lee Gon tries to close the doors to a parallel world which was opened by demons; a detective tries to protect the people and the one she loves.
Lee Min-ho
Lee Gon
Kim Go-eun
Jung Tae-eul / Luna
Woo Do-hwan
Jo Eun-sup / Jo-young
Kim Kyung-nam
Kang Shin-jae
Jung Eun-chae
Goo Seo-ryung / Goo Eun-ah
Lee Jung-jin
Lee Rim
Jeon Moo-song
Lee Jong-in / Prince Boo-young
Kim Yeong-ok
Noh Ok-nam
