The story takes place in Chang'an, the capital of Qi State. Lu Anran, the legitimate daughter of Prime Minister Lu Li, married Lan Yu, the legitimate son of General Lan Mao, from their little fingertips. The two were childhood sweethearts and had a deep relationship. Political enemy Li Biyong was afraid that the marriage between the two families would be too powerful. When Shi Mao led his troops on an expedition, he leaked military secrets to the enemy country Yan. As a result, the general was defeated and captured. Li Biyong took the opportunity to impeach the general for treason, and the Lan family was destroyed. Only Lan Yu escaped from the disaster because he studied under a teacher in Nanshan.
The Prime Minister's Office was implicated due to its relationship with the Shi family, and the Prime Minister was dismissed. His Majesty was worried that the Prime Minister had contributed to the founding of the country, and the punishment was too harsh and would be criticized by the world, so he was allowed to retire and return to his hometown without reducing his salary. After Lu Anran returned to his hometown, he followed a famous medical doctor, determined to relieve the patient's pain and live a stable life. Because there was no more news about Lan Yu, the engagement was cancelled.
After Lan Yu's master completed his studies, he entrusted him to his close friend Shen Shiwan, and he lived as Shen Yu, the concubine of the Shen family. The Shen family was originally from the same hometown as the prime minister, so the two met again when they grew up. The only ones who know Shen Yu's identity are Shen Shiwan and Master Shen Yu. In his hometown of Zezhou, Shen Yu devoted himself to studying, striving to gain fame and find out the truth about the past. Lu Anran devotes herself to practicing medicine, where will fate take the two of them?
Concept: Revenge of ancient sweet pets