Black Secrets

Four years ago, Yun Haeyon tried to kill her adoptive mother. Now she is almost seventeen, and she is trying to live like an ordinary teenager. Everything changes when the family moves to the town of Kangnin. While wandering around the area in an attempt to dispel boredom, Haeyon finds a school backpack in one of the caves. Soon, its owner is also discovered. To be more precise, her corpse. The girl who everyone thought had run away from home was actually murdered. Finally, something interesting has happened! Haeyon is determined to unravel the mystery, especially since the backpack contains the deceased's personal diary. However, she is unprepared for the fact that the entries will bring to light her own secret, carefully buried many years ago. Haeyon feels the darkness burning from within again, incredibly resonant with the words in the diary: "I want to kill you all".