Song Zhiya, the third young lady of the Song Dynasty, was good at distinguishing stones and making inkstones. During a quarrying trip in the Western Mountains, she became acquainted with the gentle young master Gao Yan. The two were accidentally involved in the secret case of Liu Jingnian's inkstone twenty years ago. From the dangerous landslide in Duanyun Valley to the search for the truth in Moyin Cave, using the blue marble and Liuyun Inkstone as a guide, they worked together to uncover the conspiracy of the traitor and clear old grievances. In the process, Su Wan and Shen Yanzhi's love gradually grew, and the friendship between the Song family sisters lasted forever. In the end, Song Zhiya and Gao Yan were hired by the inkstone and stayed together for a lifetime. This romance between the Song family's inkstone art and the inkstone became more tender and touching as time passed.
