During the Wu and Zhou Dynasties of the Tang Dynasty, the undercurrents of Luoyang, the sacred capital, were surging. Legend has it that Queen Zetian secretly hid a strange book "The Sun and the Moon in the Sky" that could determine the power of the country, which caused open and covert conflicts among various forces.
Li Jingque, a Dunhuang prince whose life experience remains a mystery, was forced to step into this vortex of power because he was involved in a theft of Buddhist treasures. The star map code of Longmen Grottoes, the murderous intentions of the puppets at the Zoroastrian Temple Night Festival, the disguise mystery of Lishan Hot Spring... All the strange events are closely related to the palace secrets of the Xuanwumen incident twenty years ago.
Through Princess Taiping's wooing, King Linzi's temptation, and the invasion of secret techniques from the Western Regions, Li Jingque gradually discovered that he was the key to unlocking the mystery of "The Sun and the Moon". And every time he took a step closer to the truth, the Tang Dynasty's national fortune chart would shift by one point.
When the star map on the Immortal Platform finally lights up, will it repeat the fate of bloodshed, or create a new situation with the sun and moon in the sky? All this depends on the choice of this Dunhuang prince.
