The series is adapted from the ancient-style detective work of the comic artist RC, titled "White Cat Legend," and it tells the story of the mysterious new Assistant Minister of Dali Temple, Li Bing, leading the members of Dali Temple on thrilling investigations and adventures while safeguarding their inner sense of justice. The story takes place in the imperial capital under the rule of the empress. During a banquet at the Tang Palace, Li Bing (played by Ding Yuxi), who is highly regarded by the empress, is appointed as the Assistant Minister of Dali Temple. Within Dali Temple, Chen Shi (played by Zhou Qi), Wang Qi (played by Feng Man), Alibaba (played by Wa'er), Cui Bei (played by Ding Jiawen), and Sun Bao (played by Zhang Yicong) work together under the guidance of the newly appointed Assistant Minister, Li Bing, to unravel the layers of mist in the imperial capital. They support each other and defy their fate while upholding their inner sense of justice.