Long ago, Jeju was thrown into confusion by an outbreak of lust demons. Wonjeong, fated to save the island by establishing the Barrier, secretly visits and forms a friendship with two boys, Van and Gungtan, who were raised solely to kill lust demons. Ten years later, Wonjeong returns to Taejangsa Temple after completing her training to establish the Barrier. However, as soon as she starts...

Johan overcomes his despair after Chan-hee's death. Mi-ho, who is in pain and blaming herself, vows not to lose anyone else who is precious. From then, she begins receiving intense training from Geum Baek-ju at Granny Haenyeo's Home to regain the power of Wonjeong. Johan and Van follow Mi-ho but observe from a distance so that they don't interrupt her energy. Meanwhile, unfold the stories of...

Gungtan remembers once again that Wonjeong had sealed him in the past and escapes without being able to harm Mi-ho. Captivated by fear and anger, Gungtan begins to plunge the world into darkness. Mi-ho starts to blame herself, believing that the tragedy will only end when she dies. Meanwhile, illusions of Gusunsae cause Tamra High School students to engage in mass suicide. Despite Johan's...

Mi-ho finds out about Butler Chang's secret and tries to kill herself as she feels betrayed. The moment Van rushes to Mi-ho and holds her hand, she recovers all the memories from the past. Gungtan rages as he feels dejected after watching Mi-ho fail to regain power even after her memory has returned. Filled with madness, Gungtan prepares for the end by brutally killing the tramps he is...

Van learns that Mi-ho will vanish if she regains the power, leaving only Wonjeong. After agonizing, Van tries to stop Mi-ho’s training to become Wonjeong. Mi-ho is just frustrated and upset at Van’s sudden behavior. Meanwhile, Gungtan attempts to use Yeom-ji to find out about the location of the remaining Dol Hareubang, and Johan goes to Gungtan’s hideout to fight him to save Geum Baek-ju and...

It's finally the day to establish the Barrier. Mi-ho, on her way to the altar, fights a great battle against lust demons alongside Butler Chang, who has returned, and Johan, who woke up from a coma. After defeating countless lust demons, Mi-ho leaves the rest to Van, Johan, and Butler Chang and goes up to the altar. But because of her memories from the past and fear, the Barrier continues to...