Liu Yunshu, the refined and perceptive daughter of a high-ranking official; Xiao Yan, the third prince, stern and skilled at deduction; Chu Huai'an, a rebellious martial arts champion who can fight; and Lin Miaorong, the quick-witted, eloquent daughter of a vice minister of justice. These four rising stars of the capital seem to have nothing in common, until a bizarre case forces them to join forces.
A Buddhist treasure vanishes from the forbidden palace, a weeping woman terrifies the streets, a visitor from beyond the heavens brings an ominous prophecy, and the beloved Princess Yongning mysteriously disappears deep within the palace... Behind each strange case, intricate mechanisms, uncanny formations, secrets of a former dynasty, and the dark depths of human nature weave together into a web. Drawing on their extraordinary yet complementary talents, the four unravel its threads through the fog.
Yet they gradually discover that every mystery they solve brings them one step closer to a deeper conspiracy. All the clues seem to point toward a secret phrase buried by blood and time, and a shocking hidden treasure capable of shaking the foundations of the realm.
When trust is put to the test and friendship faces life and death, can they recover the priceless treasure, save their loved ones, and expose the heavy darkness covering a glorious age in the treacherous capital of Yujing?
In a nutshell: Four heroes of the capital investigate strange cases, decipher secret phrases, and break through mysterious formations, only to discover that every conspiracy points to the depths of the palace. And beside the dragon throne, a shadow has quietly taken its place.
