Ju-ran, who has always been weak since she was little, is forced by her stepmother to transfer to a boarding school. Then one day, her classmates begin to disappear one by one without a trace after showing strange signs. Ju-ran sees the disappeared girls, but no one believes her. Ju-ran starts to have doubts about the accidents at school, but Ju-ran starts to notice abnormal changes to her body.
Ju-ran, who has always been weak since she was little, is forced by her stepmother to transfer to a boarding school. Then one day, her classmates begin to disappear one by one without a trace after showing strange signs. Ju-ran sees the disappeared girls, but no one believes her. Ju-ran starts to have doubts about the accidents at school, but Ju-ran starts to notice abnormal changes to her body.