Due to government shuffle during the reign of Wu Zetian, the ambitious Di Renjie was relegated to a remote town in the east. Di showed extraordinary talent in case-solving, but as he probed further, more and more secrets were revealed. He embarked on a nationwide journey and solved many mysterious cases. In the end, he returned to Chang'an and reunited with his father. Together, they tackled a crisis that threatened peace and order.
Based on Mo Shu Bai's novel of the same name, the story follows Liu Yuru, the daughter of a cloth merchant who suffered from a young age. She is married off to notorious playboy Gu Jiusi, who looks down on her. However, Liu Yuru decides to learn business from Gu's mother and becomes adept at it. She changes her view of Gu Jiusi and discovers his pure and sincere side. Meanwhile, the commander of Yangzhou causes chaos, forcing Gu's family to flee. Gu Jiusi matures and becomes the Minister of Revenue, working to lighten the tax burden on the people. Liu Yuru establishes a women's charity and builds business relationships to bring prosperity to the people. Together, they create a prosperous era.
In an era when the demons are in power, they are the masters of the despicable cultivators and mortals. The cultivator elders deem it necessary to send someone back in time, to determine the origin of the demon lord and to prevent his awakening. Li Su Su accepts the mission, becoming the mortal Ye Xi Wu, General Ye's third daughter who is married to Tantai Jin, the hostage prince and future demon lord. She is determined to destroy Tantai Jin, who in the future will massacre many. But as a witness to Tantai Jin's past life and rise to power, an unexpected tale emerges, one complicating her quest.
Xiao Se, a penniless innkeeper with a mysterious past, embarks on a journey with young martial artist Lei Wujie. Along the way, they befriend skilled warriors and become entangled in power struggles between the martial arts world and the imperial court. As they face deadly battles and unravel hidden conspiracies, Xiao Se’s true identity is revealed, linking their journey to a throne dispute from twelve years ago.