Transmigration into a desperate situation, terror on the execution ground (beginning): Modern forensic doctor Shen Qingli opens her eyes to find herself kneeling in the pouring rain on an execution ground, dressed in bloodstained prisoner's robes. Her predecessor was framed for murdering her live-in son-in-law husband, who was in fact a scumbag, and is about to be executed. As the executioner's broad-bladed sword gleams before her, a rider shatters the rain at the last possible moment. Regent Xiao Jue holds up a golden decree and orders, “Stay the execution!” He needs Shen Qingli to determine the truth behind the late emperor’s, his elder brother’s, mysterious death. Seizing her only chance to survive, Shen Qingli uses professional terminology to cow everyone present and demands to examine the body.
An autopsy clears her name, and her talent begins to show (development): In full view of everyone, especially under Xiao Jue’s scrutiny, Shen Qingli performs an autopsy on her predecessor’s “late husband.” Using professional techniques despite her rudimentary tools, she thinks clearly and uncovers crucial evidence, such as the real cause of death, traces of poison, and fabricated wounds. She clears her name and exposes the true culprit, a minor pawn in the faction that framed her. Her calm, precise, almost cold-blooded examination shocks Xiao Jue and the officials present, but also earns her accusations of being a “witch” and “depraved.” Overruling the opposition, Xiao Jue takes her under his protection for the time being, in the prince’s residence or a designated institution, under the pretext of having her assist with the investigation.
Finding her footing in the prince’s residence as cases mount (deepening): Shen Qingli’s position in the prince’s residence is precarious, with the servants looking down on her and officials doubting her. Xiao Jue tests her abilities by presenting her with puzzling cases, such as the mysterious deaths of powerful nobles and the theft of a secret palace medicine. Drawing on her forensic knowledge, including crime scene investigations, autopsies, and trace evidence analysis, Shen Qingli repeatedly cracks bizarre cases. Piece by piece, they point to a deeper conspiracy, possibly tied to the late emperor’s death and factional struggles at court.