Shen Qingluo died suddenly while working overtime and became the lowest-ranking concubine in the Hou family. My mother-in-law is mean, my sister hides a knife in her smile, and my grandmother only respects the rules of my concubine. There is only one way for a concubine to live like a human being - to climb up. She won her grandmother's favor by copying scriptures, borrowed Xiao Heng's hand to pass a note to open the crack in the front door, and took advantage of the chaos to hand over the first account after Qiu Wei. But a prince's mansion is just the starting point, and the palace walls are far dirtier than she imagined. She had no soldiers, no money, and no family. She only had a pair of hands with a pen and a brain that could see farther than all the civil and military officials in the dynasty. From the concubine of the side courtyard to the queen of the middle palace, she did not rely on life or men, but on the chips she had saved little by little. Each step is on the tip of the knife, and each step is leveled with one's own bones.