During the period of the Republic of China, Ding Yun Qi, a talented and kind-hearted man, accidentally discovers the secrets of Kunlun Ruins while investigating his brother's bizarre disappearance. As a result, he gets involved in a conspiracy plan by warlord Luo Yun Song, who resells cultural relics, in an attempt to seize the treasures of Kunlun Ruins.

Luo Wanwan, the outspoken "chivalrous woman" and daughter of the Director of the Ministry of Rites, was involved in a murder case on the way to escape from marriage. She and her husband, Li Yichen, the young minister of Dali Temple, became a pair of "enemies" without knowing each other. In order to find out the truth, she disguised herself as a man in Dali Temple and became Li's assistant. Together, they fought crime, solved crimes, upheld justice, and developed an ironic romance.