Traceability in the Dark Area: Girl Detective

Su Yao is a fledgling female detective who is passionate and curious about all kinds of suspense cases. Once, she received an anonymous letter that simply read, "Abandoned factory in the western suburbs, at midnight, there is the truth you want to know." Su Yao decided to find out. After arriving at the abandoned factory in the western suburbs, she found that the place was eerie and filled with a strange atmosphere.