There might be a light novel named 'Imperial Guards: Secrets of the Palace'. In this, the imperial guards could be depicted as protectors of the royal family, with stories revolving around their efforts to safeguard the palace from various threats, such as assassins and traitors. It may also explore the personal lives and relationships of the guards.
I would recommend 'Imperial Guards: The New Recruit'. It's a great start for beginners as it likely focuses on the journey of a new imperial guard. It can introduce the basic concepts of the imperial guards' world, like their hierarchy, training methods, and the general environment they operate in.
I'm not sure specifically as there could be many novels with this title. It might be about the imperial guards seeking revenge for some wrong done to them, perhaps betrayal within the imperial court, or an injustice against their group or someone they are loyal to.
The instructor of the 800,000 imperial guards was a middle to low-level officer of the Song Dynasty. His exact rank was unknown. The instructor of the Imperial Army was an officer in the Imperial Army, but his status was lower, belonging to the lower ranks of officers. The military training of the Song Dynasty was handled by the instructor, the capital instructor, and the patrolling envoy. The instructor was the lowest level. The official positions in the Song Dynasty were divided into nine grades. The instructor was not among the thirty-one grades, and the specific official rank was not mentioned. Thus, it was impossible to determine the exact rank of the eight hundred thousand Imperial Army instructors.
Since I'm not familiar with this particular novel, it's difficult to name the exact main characters. However, in a novel about imperial guards seeking revenge, we can assume that the leader of the imperial guards would be a central figure. There may also be a character who is the cause of their need for revenge, like a traitor among their ranks or an enemy from outside the imperial guard system.
Nirvana in Fire was a popular ancient romance novel by Hai Yan. It was published on Qidian Chinese website and was widely loved by readers. The story described Mei Changsu's meticulous planning, re-examination of the unjust case, clearing the charges, and the implementation of revenge. This book can be read or listened to on the Qidian Reading App. I recommend the audio book host Mi Li Xiao Li: The voice is real, the characters are vivid, and the tone is lively. Now, you can also get an experience member by going to Qidian to listen to books. You can read authentic books and listen to authentic audio on the Qidian Reading App. The male lead was Mei Changsu. He was intelligent and talented, but he bore a deep hatred. The female lead was Ni Huang. She was perceptive, calm, and composed, not losing to the males.
I'm not sure if the Warhammer 40K Imperial Guard has a painting book because the Warhammer 40K is a fictional game and novel series, not a real world. The painting book could be a uniform or equipment of the Warhammer 40K Imperial Guards, or it could be a painting material used for decoration. If you want to know more about the Warhammer 40K Imperial Guards, you can ask me other related questions.