Set during the year 1999, when some people thought the end of the world was approaching, Eun Chae Ni lives in Haeseong City. Her only relative is her grandmother, Kim Jeon Bok, who runs a well-known restaurant in Haeseong. Eun Chae Ni is an unpredictable person with a bright personality. One day, she is caught up in an unexpected incident and suddenly gains a supernatural power. When this occurs, she happens to be with her neighbors, Son Gyeong Un and Kang Ro Bin. They also gain their own supernatural powers, but their supernatural powers are not perfect.

Meanwhile, Lee Un Jeong arrived in Haeseong City from Seoul and has been working as a civil servant in the local city hall. He is very strict about keeping his principles, and he lacks social skills at work. Outside of city hall, he is a bit of a mysterious person. He approaches the series of disappearances that take place in Haeseong City with Eun Chae Ni. Ha Won Do seems like a cool-headed and rational person, but he has a dark desire behind that veneer. Eun Chae Ni and her neighbors Son Gyeong Un and Kang Ro Bin, who have gained supernatural powers unexpectedly, fight against a villain who threatens the peace of Haeseong City.