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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
A self-serving mythical creature's bid for invincibility backfires when he finds himself at the mercy of a woman who can see otherworldly beings.
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