Kokdu: Season Of Deity
Title: Kokdu: Season of Deity / Season of Kok-Du (literal title)
Revised romanization: Kokduui Gyejeol
Hangul: 꼭두의 계절
Kok-Du (Kim Jung-Hyun) is a cruel grim reaper who once entered the human world to take a human form and kill people who he thinks deserve death. As he is in his human body, he met Han Gye-Jeol (Im Soo-Hyang) and fell in love with her.
Kim Jung-Hyun as Kok-Du
Im Soo-Hyang as Han Gye-Jeol