During the Lantern Festival, Princess Ningyuan’s mysterious death sparks an investigation by Li Peiyi, a skilled investigator, and Xiao Huaijin, a meticulous strategist. Their pursuit of the truth uncovers palace intrigues, complex crimes, and hidden struggles within the Tang Dynasty court.
| Directing | Yin Tao | Director |
| Writing | Meng Yang | Writer |
| Writing | Zhu Xin | Writer |
| Production | Zhang Wenli | Executive Producer |
| Writing | Sen Lin Lu | Novel |
