Saintess of the Illusion Clan

She is Sang Xuerong, the illegitimate third daughter of the Prime Minister's household in the Southern Jade Kingdom. She is also Kong Taxue, an ordinary girl in the 21st century who depends on her mother. Drawn together by an old, battered book, the lives of two girls from different fates and eras become intertwined. Is it coincidence or a plot? In this strange world, as the truth is gradually revealed, how will they find their place?