Ten years ago, everyone in the general's palace was executed. Only the youngest son Lin Zhen was rescued by an old eunuch, purified (fake) and entered the palace, hiding in hiding, just for revenge.
On the first day he entered the palace, he saw the palace maid Park Liming being bullied. He secretly took action with his medical skills. Since then, he has formed an indissoluble bond with this gentle but tough woman.
On the surface, he appears to be a humble and prudent little eunuch, but in fact he is a highly skilled martial artist and unrivaled in resourcefulness. While secretly investigating the truth behind the family's extermination, he silently protects Park Liming, who was unexpectedly made a concubine.
Concubine Li is arrogant and makes things difficult for her, but he cleverly defuses it, leaving the villain to suffer the consequences; Eunuch Liu, the Supervisor of Ceremonies, is ruthless in setting up a trap, and he works step by step to uncover evidence of her collaborating with the enemy and treason; the emperor is suspicious and tempting, but he is watertight and can walk freely on the tip of a knife.
Pu Liming knew that he was an extraordinary person. From the initial gratitude to the subsequent heartbeat, he knew that he was a "eunuch", but he still couldn't help but fall for it. "Lin Zhen, if you were not an eunuch, I would be willing to spend my life with you."
When the fake eunuch's identity was on the verge of being exposed, when the truth about the family's extermination came to light, and when the court was in trouble again, Lin Zhen shed his disguise, took revenge with his sword, and protected her.
From eunuchs in the palace to emperors, from palace maids to queens, they have survived the test of life and death, dodged open and secret arrows, and finally achieved this: they will be a pair for the rest of their lives, and they will grow together in the prosperous age.