Season 1
In 2017, Son O-gong and Devil King Woo are in conflict with each other as they look for a true light in a dark world where evil thrives. From there, O-gong is bound to his protective role towards Jin Seon-mi, the little girl he had met years ago. Having made a contract with Seon-mi 25 years ago, entitling her to seek help from O-gong whenever she calls him in exchange for letting him free, the two meet again in a fateful encounter.
All Episodes
Episode 1
Episode 1
December 23, 2017
While fulfilling her part of the deal with a so-called "fairy," young Seon-mi makes a critical mistake that catches up with her 25 years later.
Episode 2
Episode 2
December 24, 2017
Desperate for help in dealing with O-gong, Seon-mi seeks out Devil King Woo, who, as the head of an entertainment agency, is judging for an audition.
Episode 3
Episode 3
January 6, 2018
As Geumganggo works its magic on O-gong, he gets frustrated by the conflicting feelings he has toward Seon-mi. Meanwhile, a young woman goes missing.
Episode 4
Episode 4
January 7, 2018
To get O-gong off his back, Devil King is forced to make a big compromise. O-gong brings something -- or someone -- very stinky to Devil King's house.
Episode 5
Episode 5
January 13, 2018
Devil King donates an object of cultural importance to a museum, where historical artifacts on exhibit still bear the souls of the original owners.
Episode 6
Episode 6
January 14, 2018
Loyal Ms. Ma can't allow herself to just watch as Devil King suffers. Seon-mi feels torn as she knows all too well that O-gong's love isn't real.
Episode 7
Episode 7
January 20, 2018
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.
Episode 8
Episode 8
January 21, 2018
When the plan to make O-gong jealous misfires, Devil King shows Seon-mi something to provoke her. An evil spirit is using social media to spread hate.
Episode 9
Episode 9
January 27, 2018
Seon-mi can't stop thinking about the moment the bell rang and what it means for her. An evil spirit is suspected of stealing children's souls.
Episode 10
Episode 10
January 28, 2018
The fulfillment of Seon-mi's wish to be ordinary has far-reaching consequences on not only O-gong but also Devil King Woo, Richie and even Pal-kye.
Episode 11
Episode 11
February 3, 2018
An assailant attacks Devil King Woo at a torch relay. Richie prepares to say her goodbyes. Ms. Ma finds out that a black bell has gone missing.
Episode 12
Episode 12
February 4, 2018
O-gong realizes that the Geumganggo has the power to take his life. Kang Dae-seong devises a plan to get rid of his annoyances altogether.
Episode 13
Episode 13
February 10, 2018
Asanyeo pursues what she didn't achieve more than 1,000 years ago. Aware of Devil King Woo's weakness, she decides to use it to her advantage.
Episode 14
Episode 14
February 11, 2018
Relentless in her desire to be stronger, Asanyeo orders General Winter to get her incense burner back. Seon-mi mentions the love bell to O-gong.
Episode 15
Episode 15
February 17, 2018
To avoid exacerbating the dilemma regarding Asanyeo, O-gong must pretend not to know the truth, and General Winter must be found as soon as possible.
Episode 16
Episode 16
February 18, 2018
In an uncanny dream, a woman shows O-gong the moment that Samjang was born. Asanyeo demonstrates what she's capable of doing for Kang Dae-seong.
Episode 17
Episode 17
February 24, 2018
O-gong refuses to accept his and Seon-mi's fates. Devil King Woo wants to believe Asanyeo despite others' warnings that he's being deceived.
Episode 18
Episode 18
February 25, 2018
As O-gong prepares to sacrifice himself in place of Seon-mi, Devil King Woo, feeling sorry for both, tries to solve the mystery behind the Geumganggo.
Episode 19
Episode 19
March 3, 2018
While Seon-mi is away at the Lotus Village trying to figure out exactly what her mission is, O-gong hurries to begin the ritual to summon the dragon.
Episode 20
Episode 20
March 4, 2018
Both the Spiritual Realm and Devil King Woo try to get O-gong to come out of Sureumdong, where he's shut himself in after the fateful day.