Miss Ninth, the Indifferent Killer Concubine and Good-For-Nothing Legitimate Daughter

The only ace killer with supernatural powers in the 25th century, who killed countless people, unexpectedly traveled to an unprecedented place in history. Miss Ninth, the good-for-nothing daughter of a lonely family, one of the three major aristocratic families in the Xuantian Continent, is her time-travel a coincidence? Or is it fate?