Retrospective of the Mystery: I Puzzled Out the Source of the Crime in the Abyss

[The abyss is whispering, your time is running out] When the system's cold alert sounded, Lin Si's bone blade was inserted into the serial killer's spine. Every time a cold case is solved, corpse stains creep up an inch on her neck - that is the countdown to the decomposition of her sister's body. The bloody pupil of his left eye reflected the scene of the corpse dismemberment case. The thousand-year-old corpse and the mechanical prosthetic body actually overlapped with bloody memories. When the ninety-nine pieces of the sin puzzle were put into place, she finally saw the truth of the system: in the black mist that swallowed up thousands of evil thoughts, there was a face exactly like her own. "Welcome to the final level." The mechanical voice exuded a human smile, "Are you ready... To dissect yourself?"