Deep Spring of Hongwu

In the twenty-fifth year of the Hongwu era of the Ming Dynasty, Crown Prince Zhu Biao died of illness, shaking the imperial court. Amidst his grief, Zhu Yuanzhang decided to pass the throne to his grandson Zhu Yunwen, stirring undercurrents among the princes. At this critical juncture, Shen Yan, a modern history graduate student, unexpectedly transmigrates into the Hongwu court, becoming an obscure minor official in the Eastern Palace. Familiar with the course of the Ming Dynasty, he knows history cannot be easily altered. Facing the hidden patience of Prince Yan Zhu Di, the covetous gaze of Prince Jin Zhu Gang, and the wavering of court nobles, Shen Yan can only use his meager influence to protect the Eastern Palace, striving for a chance of survival for the soon-to-collapse Jianwen regime. However, as a woman who should not exist in this era steps into Jinling, the riverbed of history begins to tremble violently... — Description from novelcodex.org