Season 1, Episode 7

Episode 7

Air Date: 2018-01-20

Overview: Devil King Woo seeks Seon-mi's help in dealing with a troublesome prince who refuses to return home until he finds a runaway mermaid.

Runtime: 68 minutes

Cast

Lee Seung-gi

Cha Seung-won

Oh Yeon-seo

Lee Hong-gi

Jang Kwang

Lee El

Lee Se-young

Kim Seung-o

Sung Hyuk

Yoon Bo-ra

Sung Ji-ru

Jung Jae-won

Kal So-won

Song Jong-ho

Kim Ji-soo

Michael K. Lee