In ancient novels, what were the names of the emperor's secret guards or shadow guards?

[It might not be exactly what you want, but I'll try my best to recommend a novel that is most relevant to your description. The book," The Spy in the Royal Garment ", is a historical fiction novel written by the author, Deep Blue Kingdom. The general plot of this novel is as follows: Emperor Jianwen was sharpening his sword, and the King of Yan was struggling to hold on. A modern retired soldier from hundreds of years later was forced to be involved in the historical tide of disputes and became a secret agent of the King of Yan! In order to survive, he fought hard! Fighting the spies of Northern Yuan to open up the intelligence network of Mobei, fighting the Embroidered Uniform Guards to occupy the magpie's nest and borrow the chicken to lay eggs, taking advantage of the situation, tearing apart Northern Yuan's situation and condensing their own strength! I turned the tide in the Battle of Jingnan, held a high position in the Yongle Dynasty, kept a low profile, and kept my distance from the court. I secretly used the Brocade Guard to control the situation. My influence was imperceptible everywhere! He rode his horse from the north of the desert to Central Asia to Europe, and his fleet traveled to the West, Southeast Asia, and America. All of this was to open up the thinking and vision of the Great Ming Dynasty. The glorious Great Era, the era of a hero, the era of changing winds and clouds, and the rise of a legendary figure. I am a spy of the Great Ming Dynasty! ---------------------------- " The Legend of the Soldier King's Shadow " was a military-war novel written by the author, Qingqiu. The general plot of the novel was: In Huaxia, there was an army called the Shadow Army! They had been through many battles, but the enemy had never even seen their shadows. They were confident that they could resolve any danger they passed. This was the story of a soldier joining a shadow! ---------------------------- " Yong Wang Wei " was a mystery detective novel written by the author Xu Ming. The general plot of this novel was: Born in the royal family of the Song Dynasty, he was a dragon descendant of the royal family. The Yong King's Guard stood at the forefront of the storm. After 900 years of national storms, 700 years of seclusion, and nearly 300 years of invisibility, he reappeared in the world during the chaotic times of the Republic of China. The new leader of the Yong King Guards, Yong Ming, would bring along the elite Four Great David in this era of wind and clouds. ---------------------------- I Am a Royal Guard was a historical novel written by the author, Bai Liwei Ying. The general plot of this novel was: More than four hundred years ago, Emperor Xiaozong was in his prime. However, the epiphyllum on the city wall bloomed overnight. When the sun slowly rose, it scattered countless rays of dawn. However, under this dazzling sunlight, it covered the corpses of countless souls. This year, Tangning arrived... I am the emperor's personal guard, I am the Ming Dynasty's Jinyiwei. In the age of wind and rain, where will the Ming Dynasty be pushed to? ---------------------------- " Top Soldiers of the Medical Service " was a military-military career novel written by the author, Shang Yun. The general plot of this novel was: "Health service is our profession, and medics and military doctors are what we call them! Health management, diagnosis, treatment, and battlefield rescue are our daily lives! With one hand, we can save people and kill people. This is what makes us different from others!。 ---------------------------- The book " Princess of the Dark Guards " was an ancient romance novel written by the author, Lian Ya LY. The general plot of this novel was: Lang Ya was the princess of Great Zhao. She was ordered to become a monk and pray for the Crown Prince. Wu Jin was a secret guard of the royal family. He gathered intelligence to investigate crafty sycophants and held the imperial sword in his hand. She was her, the high and mighty princess, and also the decisive secret guard! Cultivators were also heartless people. The princess of the royal family was also a Dark Night Asura. 【PS。The background was Tang Dynasty. Evidence? Please don't.] ---------------------------- " The King of the Dark Soldiers " was a military-related novel written by the author, Minister Lang, and the general plot of the novel was: He was a student in the eyes of others, and the king of the Shadow Army! ---------------------------- " The Storm of Great Kang " was an ancient romance novel written by the author, Fu Xiaoguang. The general plot of this novel was: The young master of General Zhenwei's manor, who had escaped death, returned to the capital after making great contributions. However, he found that there were undercurrents surging in the capital. There were constant factional disputes, the emperor was fatuous, treacherous officials were in power, the harem was interfering in politics, and the five kings were in chaos. Outside the pass, there was war everywhere. In the chaotic times, the people, the court, and the martial world, no one knew who would be the final victor… ---------------------------- " The Royal Robe is King " was a historical novel written by the author, Qing Shan. QQ. The general plot of this novel was: The Ming Dynasty Jinyiwei, the earliest and most eye-catching secret service organization. The protagonist went from a small soldier of the Jinyiwei to a commander of the Jinyiwei, a king of a different surname, and then a power that dominated the world. ---------------------------- The book " Top Grade Special Bodyguard " was a historical novel written by the author, Xingyuan Xiaoshi. The general plot of this novel was: Qin Feng was originally the special forces 'King of Soldiers, but he had transmigrated to a dynasty called Dahua. There were beautiful women here, and there was a divine general named "Lu Bu" who seemed to have transmigrated. He originally wanted to hug many beauties and live a peaceful life. However, he did not expect fate to play tricks on him. He could not keep a low profile even if he wanted to. He was ordered to take power! Qin Feng had helped Dahua eliminate powerful enemies time and time again, clearing out treacherous officials within, wiping out the five barbarians outside, fighting the Japanese across the sea, and attacking Goguryeo in the north. Yet, he did not die in the hands of his enemies, but nearly died in the hands of Dahua's emperor…It was all because of a prophecy-the arrival of the demon star, the destruction of the crape myrtle!