A love affair involves the grievances and grudges of the previous generation: Princess Da Chu, Princess Lingnan, Concubine Le of Northern Qin, Princess Jiujiang, Queen of South Vietnam, Prince Lin of Northern Qi... But the piles of clues can only be cut and confused, friendship, resentment, love, revenge: each one of them is entangled in the heart and cannot be erased. However, if the clouds open and the moon shines, the truth will be lost in the long river of history, but we must make it surface and let the world know it before it is lost!