Synopsis：As the Song-Jin war looms, a military grain corruption scandal erupts, infuriating the emperor. Upon hearing the news, Jingji Chief Zhen Dexiu resigns overnight and secretly meets with the suspect, Qiu Yixing. That very night, Qiu Yixing dies suddenly, with all evidence pointing to Zhen Dexiu as the murderer. To clear their master Zhen Dexiu's name, Song Ci and Ye Bai travel to Feng County to track down the mastermind behind the corruption. With the help of Sheriff Shen Gujun, they identify a suspicious individual. However, every time they get close to the truth, the key witness is killed. Through meticulous corpse examination, careful investigation, and covert assistance from the mysterious Yue Chong, Song Ci finally uncovers the culprit—only to find the truth behind the mastermind is deeply unsettling...