[The ruthless killing of the eldest princess VS the pure and kind-hearted son of a dogmatic family]
The eldest princess Xiao Yan is burdened with the heavy pressure of imperial power, has a strange love poison in her body, and has a cold and strong temperament. Dong Shuo came from a scholarly family and was gentle and polite. However, due to the mysterious death of his elder brother Dong Heng, he was involved in a conspiracy deep in the palace.
Under the guise of patrolling the state capital, Xiao Yan, together with Dong Shuo and Lu Yan, secretly traced the source of the poison and local abuses. Along the way, they solved a series of major cases such as disaster relief corruption, water transportation fraud, salt merchants' private hoarding, and mine murders. Each case pointed to Shen Guifei's conspiracy. During the investigation, Dong Shuo gradually discovered that the death of his eldest brother was closely related to Xiao Yan's poisoning.
Along the way, Dong Shuo's perseverance and tenderness touched Xiao Yan again and again. The dependence on each other during the onset of love and the protection in the carriage late at night made the two gradually develop a deep love for each other. Xiao Yan's strong possession and Dong Shuo's restrained surrender are repeatedly pulled between ethics and desire, imperial power and sincerity.
In the end, the group of people chased to the border, gathered the poison materials, captured the poison master, and obtained irrefutable evidence of rebellion, completely uncovering the entire truth about Concubine Shen using love and poison to control Xiao Yan and intending to usurp power. With the help of Dong Shuo's blood and the protection of life and death, Xiao Yan stabilized her love affair, smashed the palace coup, and established power with iron and blood tactics.
