The stage is a closed high school in a provincial city.A first-year female student was brutally murdered in the old school main building.It was very similar to another bizarre murder case that happened in the same town 16 years ago.A total of five students and teachers from the same club as the victim were present at the scene of the murder.Who killed "she" and "she"...? What is the truth about the girl who revived the forbidden collection room = Wunderkammer in the present age?