Natural Burial

Chung Ah is a tree therapist. She dreams of having a blissful marriage with her fiance. One day, a high school requests for Chung Ah to treat a tree on their premises. While treating the tree, Chung Ah meets a mysterious female student who possesses strange energy. Since that encounter, Chung Ah has been suffering from nightmares nightly.
Chung Ah then receives a delivery. In the delivery box, Chung Ah discovers her high school graduation album. In the book, Chung Ah finds a picture of herself and a male student. Scribbles are drawn over the male student's face. Suddenly, Chung Ah remembers her high school days and that particular fateful day.