The humble maid Shen Zhiyi embroidered the secret royal pattern with one stitch, alarming the government and the public. Prince Xie Zhao wanted to kill her to avoid future troubles, but during the investigation, he discovered that she was actually an orphan from her mother's family. Nanny Su's embroidery patterns, Yun Niang's tearful eyes, and Qin Yan's old scrolls reveal layer by layer the murder case of twenty years ago. When the truth tears apart the palace wall, she is no longer a humble slave, but the fire of the legacy of the previous dynasty. And is Xie Zhao the one who killed her, or the one who saved her?
