Su Wan, a graduate student in the Department of Modern History, accidentally traveled to the Tang Dynasty on the eve of the Anshi Rebellion when he touched a white jade hairpin engraved with the word "Qingwu" while participating in the restoration of cultural relics from the tomb of Princess Yongtai of the Tang Dynasty at the museum. She became Su Qingwu, the legitimate daughter of the Su family in the south of Chang'an City. She was a sick and taciturn girl who died young and was mistreated by her stepmother.
At that time, the Tang Dynasty was still prosperous on the surface, with thousands of kingdoms coming to the dynasty, but in fact, the hidden dangers of separatist feudal vassals and towns were gradually becoming apparent, and there was an undercurrent of power struggle in the palace. Su Wan not only brings modern historical knowledge and knows the ending of "Yuyang Mo's Incitement to Come", but is also trapped by the shackles of an ancient woman's identity and the complex inner house of the Su family. In order to protect herself and those around her before the coming of troubled times, she put away her cowardice and relied on historical predictions and modern thinking to first resolve her stepmother's difficulties and regain the property left by her biological mother. Later, she accidentally met Cui Jiulang, a commoner but talented man, and Linzi King Li Mao, who seemed to be a playboy but actually cared about his family and country.
From working step by step in the backyard of his deep house, to doing business in Chang'an Market, to secretly gathering strength to quell the rebellion, Su Qingwu struggled to move forward in the torrent of history. She must not only avoid becoming a victim of troubled times, but also restrain the urge to interfere with history - but when the fate of the people around her intersects with the known direction of history, and when the interests of her family and country collide fiercely with her personal emotions, she finally chooses to use her meager efforts to carve out a "Qingwu Crossing" for herself and the people she cares about under the shadow of the Anshi Rebellion.
