In the Dajing Dynasty, the imperial power was stable but undercurrents were surging. Although the borders were temporarily peaceful, there were still Mobei forces eyeing the throne. Above the court, King Jing Xiao Jingyuan secretly formed a clique for personal gain, colluded with his relatives and some military generals, and his power grew day by day, eyeing the throne. As a family of founding heroes, the Dingbei Hou Mansion held border military power and was always the biggest obstacle to King Jing's rebellion. As the eldest son of the Hou Mansion and a former young general, Xie Jinghan was a thorn in King Jing's side and a thorn in his flesh.
Although the Duke of Zhenguo is also a prominent family, he has long been reduced to a vassal of Prince Jing. Su Zhenbang did not hesitate to sacrifice his own daughter Su Qingyuan in order to maintain the family's status. Jingxin Nunnery on the outskirts of Beijing is located in a remote place, but it is not isolated from the world. The teacher in the nunnery was once the wife of the imperial physician. She lived in seclusion here because she was framed. She not only taught Su Qingyuan how to read and write, but also taught all the herbal medicine and medical skills she had learned throughout her life, paving the way for Su Qingyuan to save Xie Jinghan and gain a foothold in the Hou Mansion.
The "bone-eroding cold poison" that Xie Jinghan was exposed to was not an ordinary poison, but a strange poison that King Jing specially found from Mobei. There was no cure and could only be suppressed by drugs. During the attack, his whole body was cold and painful, and the disability of his legs was not a simple trauma, but caused by the poison invading the bone marrow. This also made it more difficult for Su Qingyuan to find medicine to detoxify and uncover the truth in the later period, supporting the advancement of the long plot.
