My Gender Changed and I Became the Daughter of the Stars

In the 7th year of Emperor Tianwu's reign, the son of Xingchen was born in Xilin County. Hou Guoshi predicted that the Children of the Stars would subvert the entire Daxuan Empire (subversion here refers to the destruction of the entire Daxuan Empire) Emperor Tianwu sent troops to Xilin County to kill the Son of Stars Unexpectedly, he escaped. Emperor Tianwu was furious and ordered all babies born within a year to be killed across the country, causing the entire Daxuan to be in turmoil. Twenty years later, when the Children of the Star reappear, what kind of storm will it bring? (Marriage change + no system + fictional ancient times + combat + adventure + revenge)