In the Dajing Empress Dynasty, the empress has been on the throne for three years. The court is initially settled, but there are undercurrents in the palace. Three close maids died in mysterious circumstances one after another, all of which were vaguely related to an old conspiracy case ten years ago. She is an empress who holds the power of life and death. She is calm, wise, and thoughtful. She looks calm on the surface, but in fact she is burdened with an unknown past and pain. During the investigation, she met a former court official whose identity was a mystery. He was as gentle as jade but had a hidden edge, and his eyes concealed the love-hate entanglement related to her. The shadow of the old case is closing in, and the betrayal and loyalty of those around her are difficult to distinguish. In the whirlpool of power, she must not only uncover the truth behind the layers of fog, but also resist the complex emotions surging in her heart. Every clue that emerges is accompanied by piercing hurt, and every emotional approach hides a fatal crisis. In the intertwining of suspense and sadomasochism, she will eventually make a choice between the country and the people.