1998 Til 2001.. Dive into a haunting mystery that echoes through time. Seoul, 2001. Seo Yubin, the new girl, transferred in her final year at a new college shrouded in an unsettling silence. A hidden camcorder filled with ghostly recordings of a vibrant group of girls - the previous year's students - becomes her only link to a chilling truth. Yubin unravels a dark secret: the girls are not on a gap year, they're gone. Victims of an unsolved tragedy from 1999. As Yubin delves deeper, the line between past and present blurs. Whispers echo in the library stacks, shadows linger at the edge of vision, and a terrifying sense of being watched chills her every step. Will Yubin find justice for the forgotten girls? Or is she destined to join their spectral chorus, trapped in a cycle of secrets by the unseen hand of a killer? Hidden secrets from the past that the camcorder recordings can't reveal on its own.