Ji-ah who lost her parents in a freakish car accident on Yeougogae when she was 9 years old, becomes a producer of the investigative program called "Finding Local Myths". One day, she receives a report on a suspicious "monster".

Ji-ah finally meets a mysterious creature she had been looking for and she thinks Lee Yeon is the last evidence to find her long-lost parents. However, Lee Yeon draws a line to Ji-ah. Then, they both get caught up in a shocking incident.

On the suspicious Eohwa Island, Ji-ah finds the evidence of head incident along with her parents' story. However, while investigating on the incident, she falls into danger with Lee Rang's appearance.

After returning from the island, Lee Yeon falls into Ji-ah when he knows she's not the one he has been looking for. Even Ji-ah also is attracted to Yeon gradually. After a short date, Lee Yeon is given a serious trial.

Lee Yeon finally has assured that A-eum reincarnated as Ji-ah. However, he hides it from Ji-ah as he wants her to live a normal life. Then, he begins to search Ji-ah's parents and goes to 'Satto' who has the information on Ji-ah's parents.

Ji-ah and Yeon finally meet "Satto", but he refuses to give information. Meanwhile, Rang also visits Korean Folk Village to find an item. Then, he makes a risky deal on Yeon.

The incarnated Imoogi moves towards Ji-ah and Yeon. Yeon barges into Ji-ah's house to protect her. Then, Yeon's brutal truth behind his past gets revealed.

Ji-ah is shocked that Yeon is the one who killed her in the past. Then, they move away from one another for each other. However, she decides to find out about the truth. Then, they fall into the Imoogi's trap.

Yeon and Rang trapped in the Forest of evil. They fight against those evil sprits endlessly. After reuniting her long missed parents, she refueses to go back to her life.

Ji-ah and Yeon finally face the truth of the past. They promise to look only at each other's present and stay together no matter what happens. Then, Yeon goes to save Rang who is in danger.

The Butler uses Ji-ah's parents as a bait to threaten Ji-ah for Yeon's body. Then, the Imoogi declares to Yeon that he will own Ji-ah. Rang is threatened with his life at stake.

Ji-ah finally meets her parents after 21 years. However, Rang faces a new challenge as soon as released from the contract and goes out to find Imoogi and Yeon to protect his precious people.

Another Imoogi within Ji-ah came out. Ji-ah and Yeon spend a mournful night before the sad fate ahead of them. The pandemic Imoogi caused puts the human world in chaos. Yeon and reborn Rang carry out a plan to bring an end to the endless fight.

Taluipa sentence Ji-ah to death and turns down Yeon, who wants to catch Imoogi after figuring out how Imoogi switches to another body. Yeon now makes his final choice in the face of ever-changing fate.

Ji-ah and Yeon have their final date, hiding their feelings for each other. A faint hope appears before them, but it shatters because of an evil scheme Imoogi plots.

Left behind in the world without Yeon, Ji-ah visits the Afterlife Immigration Office and begs for Yeon's return. However, there seems no way. In April, when the snow falls, an especial person appears.