She was the last princess of Dayan. She was nailed to death on the dragon chair in Jinluan Palace by the rebels, and her country perished.
Thousands of years later, she was reborn in the body of Jiang Wan, an abandoned daughter of a wealthy family. When she opened her eyes, she was pressed on her head and arranged for a ghost marriage - to marry Xie Chi Chongxi, the prince of the Xie family who had died of illness many years ago.
The moment the coffin lid closed, dragon roars that had not been heard for thousands of years exploded from the ground. She discovers that the man in the coffin is actually a young general who died for his country in the previous dynasty, and the imperial mausoleum she personally supervised built during her lifetime has become a living tomb where he has been imprisoned for thousands of years.
The Xie family has been entrenched in the capital for four hundred years, and started its business by stepping on the dragon vein of the Yan Kingdom. Generations of "princes who died young" are sacrifices to the dragon vein. The real dragon soul of the Yan Kingdom is locked underground in the Xie Family Ancestral Hall.
Xie Chi has been waiting for a thousand years for someone who can break the soul-soothing curse.
Jiang Wan smiled. She will not let go of anyone who changes her soul-soothing spell, kills her whole family, or steals her dragon vein.
The Xie family thought they had bought a happy dead person. But little did they know that the day the phoenix coffin returned to its place would be the time when the old Yanlong soul returned.
Very nice book, recommended!