Chu Qingci, the top modern female forensic doctor, accidentally traveled through time and became the legitimate daughter of the ancient general's palace who was slandered for murdering the emperor's heir and died in the cold palace. The original owner's memory was confused and the cause of his death was a mystery. As soon as he was "reborn", he was involved in another carefully planned murder case. Faced with fatal accusations and the ubiquitous murderous intention in the palace, Chu Qingci relied on his forensic knowledge that transcended the times and transformed into a walking coroner. She used the corpse as evidence to find the truth from clues, clearing her grievances step by step and killing her enemies with her own hands. When uncovering a series of "perfect crimes" in the palace, she not only uncovered the mastermind behind the original murder, but also accidentally got involved in the huge whirlpool of imperial power change. She and the sinister and suspicious regent Xiao Jue went from being chess pieces testing each other to becoming allies and lovers playing chess hand in hand. The highlight is the seamless combination of modern criminal investigation and forensic technology with ancient palace intrigues. The cases are interlocked and the suspense is layered. The heroine, without a golden finger, only relies on her wisdom and professional knowledge to create shocking waves in ancient times.