PROLOGUE : The 1997 Disappeareance
That day, heavy rain filled the air with noise. Students were not allowed to go outside and were forced to stay inside the school building. This was Gokuen Cimbari. The school had stood for fifty years… until 1997.
At exactly 1:00 PM, the break bell rang. A girl wearing a school uniform and a mask walked toward her locker to take her lunch. But she made a mistake. She opened the wrong locker—Locker 13.
The CCTV recorded everything. The student stood silently in front of the locker. No movement. No sound could be heard because of the heavy rain. Then, suddenly, she turned toward the camera. Expressionless. Her skin had turned pale.
And that was the reason Gokuen Cimbari was shut down—the mystery of 1997 that was never solved.
Ten years later, the building was bought and rebuilt into Gokuen Tsukimori.
For a decade, nothing unusual happened… until 2026.
That was when five students discovered an old CCTV recording. They might have been scared, but they were members of the student council—people who never backed down from curiosity.
And that was where the impossible mystery began.
No one knew what would happen next. Only the five of them, including the student council president, Yuriko, who was always seen carrying a small notebook and a black pen.
Whether it felt exciting or terrifying, one thing was certain—they would have to rely on each other, each with their own unique strengths.