Wen Si, who mastered the medical skills of the Republic of China, held small live broadcasts to share ancient forensic medicine on weekdays, and was accidentally involved in many unresolved bizarre cases. She relied on her unique medical knowledge and careful thinking to disassemble clues step by step under the sporadic prompts from the live broadcast audience, and uncovered the secret truth hidden behind the fog. She had clear thinking throughout the process, acted shady and resolute, and never missed any detail.