In the third year of Yonghui, there was mist and rain in the south of the Yangtze River. A tea boat "Liangchun Boat" floated on the Qinhuai River. The owner of the teahouse, Shen Liangchun, had a beautiful appearance and was good at making fragrant tea. However, he was involved in the undercurrent of the court due to an unsolved case.
Pei Yan, the commander of the Jin Yiwei, was ordered to go south to investigate the case, coldly and solemnly, pressing forward step by step; the suave pharmacist Su Yuqing shook his fan and chuckled, hiding poison in his sleeves; the mysterious widow Zuo Yan Plover's fingertips were stained with blood, and she dug up corpses like she was solving a chess game. The two met because of a murder case, and the clues all pointed to a fire that burned the sky twenty years ago. On the Liang Chun boat, the fragrance of tea concealed a bloody secret...
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