Spirits of the past- Michelle's experience

Michelle, a high school student, is struggling with sleep due to disturbing thoughts about someone named Treasure. Her friends, Celina and Monica, notice her strange behavior in class. While heading to the bathroom, Michelle discovers three ghostly girls in worn-out uniforms with bloodstains, who seem to be spirits. When they notice her, they approach her, and Michelle flees in fear. The spirits pursue her, leading to a dramatic confrontation that attracts the attention of teachers and students.