Lin Xiaoxiao, a senior history major, stayed on campus during the summer break to revise her thesis, "The Political Dilemma and Historical Evaluation after Wu Zetian Claimed the Title of Empress". Criticized by her advisor that "there is plenty of data, but no viewpoints", she casually clicked on the "Historical Practice Mode" of her mobile phone AI, and was unexpectedly transported to the Wu Zhou court shortly after Wu Zetian ascended the throne, accidentally falling into an assassination scene and becoming the prime suspect.