E1 - Episode 1

Aired: 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.

E2 - Episode 2

Aired: 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.

E3 - Episode 3

Aired: January 06, 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.

E4 - Episode 4

Aired: January 07, 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.

E5 - Episode 5

Aired: 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.

E6 - Episode 6

Aired: 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.

E7 - Episode 7

Aired: 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.

E8 - Episode 8

Aired: 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.

E9 - Episode 9

Aired: 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.

E10 - Episode 10

Aired: 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.

E11 - Episode 11

Aired: February 03, 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.

E12 - Episode 12

Aired: February 04, 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.

E13 - Episode 13

Aired: 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.

E14 - Episode 14

Aired: 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.

E15 - Episode 15

Aired: 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.

E16 - Episode 16

Aired: 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.

E17 - Episode 17

Aired: 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.

E18 - Episode 18

Aired: 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.

E19 - Episode 19

Aired: March 03, 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.

E20 - Episode 20

Aired: March 04, 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.