On a rainy afternoon, Lu Xun, an antique dealer, carried a cracked jade plaque and knocked on the wooden door of the "Guanwu Zhai" deep in the old alley. Behind the door, ancient book restorer Shen Xingci was accompanied by a room full of old volumes, and he also hid secrets that his family had guarded for generations. The pattern of the jade medal coincides with the symbol of the Shen family's keeper, and is also involved in the old case of Grandpa Lu Xun's dusty cultural relics. An unexpected encounter makes the two involved in the antique mystery. From the obstruction of Jubao Pavilion to the late-night raid of Guanwu Zhai, from the secret of Boguxuan to the danger of Star Observation Tower, they followed the clues of jade tablets, fragments and star guides step by step. Not only did they uncover the truth about the secret vault of the previous dynasty, but they also discovered the bond that their grandfathers had laid long ago. When Qin Zhengxiong's conspiracy came to an end with the collapse of the secret vault, under the locust tree in the old alley, a custom-made bookmark carried his heart, letting the smoke and smoke diffuse the past storms, and the two of them opened a new chapter in the remnants of the old time.
