In her previous life, she was a chess piece in a deep palace. She was stabbed in the back by her best friend and buried as an abandoned child by the emperor. After being reborn, An Lingrong lost all her humility and gathered her sharp edge. She weaved a splendid path of wealth with her embroidery skills. She first cut off the arm of her scumbag father, and then protected her loving mother. Entering the palace is not to compete for favor, but to take advantage of the four red walls to avenge the blood feud of the previous life and seek power in the next life. Two helping hands to repay Zhen Huan's old debt; several plots to secretly form a harem power. She is not the bird in the emperor's cage, but the one who decides the outcome of the chess game. When Prince Guo's private seal and Zhen Huan's secret letter were laid out one by one in front of the emperor's case, and when her prince sat firmly in the East Palace, the world knew: In this deep palace, the most ruthless knife is always hidden in the smallest stitch.