Under the neon lights of Jiangcheng in midsummer, delivery boy Mo Chen rides his "Blue Lightning" through the traffic. Under his helmet is an unknown identity - "Night Owl", the former top agent of the mysterious organization "Shadow Pavilion". Three years ago, "Shadow Pavilion" was destroyed, and the traitor "Viper" disappeared. He hid in the market, just to find out the truth, but he was accidentally involved in a shocking conspiracy surrounding antiques.
Chu Yao from Jian Gu Zhai, as the heir to the Chu family, is anxious about the jade pendant that is the finale of the annual auction. The greed of her second uncle and the jealousy of her cousin made her struggle for power in the family. The "Liuguang Bi" she wore on her chest since she was a child is not only her spiritual support, but also hides the secret that the Chu family has guarded for thousands of years - there is a deep resonance between it and the jade pendant with the Chilong pattern from the Han Dynasty.
A robbery on a rainy night suddenly intertwined the fates of Mo Chen and Chu Yao. He rescued her with amazing skills, but left a deeper mystery; she tracked down her savior, only to find that his identity was far more complicated than she imagined. As the auction approaches, the international thief "Phantom" sneaks into Jiangcheng, and Zhao Chengfeng, the young owner of Wanbao Tower, lays a business trap. The clues of "Viper" gradually overlap with the secrets of the Chu family, and all undercurrents point to the same end point.
From the intrigues of the antique trade to the mystery of the blood contract passed down by the family; from hunting in the urban streets to the secret exploration of the primeval jungle; from the truth about the destruction of the "Shadow Pavilion" to the millennium conspiracy of the "Scourge" organization... Mo Chen and Chu Yao were forced to join hands to unveil a guardian legend related to the survival of civilization in the world of antiques and urban fireworks.
