Lu Mingyuan, associate professor of the Department of History at Yenching University, originally only believed in the logic in the documents. It wasn't until his student died mysteriously and drew a twisted "dragon" in blood on the wall before he died that he was forced to get involved in a horrifying truth that spanned thousands of years.
Under his feet, under the land of China, there was an ancient existence named "Xu" sealed. And every "prosperous age" praised by history books is a bloody suppression ceremony; every "turbulent age" where dynasties change is the result of the leakage of "virtual" power and the distortion of people's hearts.
Lu Mingyuan discovered that his bloodline had a strange resonance with the core of the seal - the "dragon vein". With the help of Su Mo, the guardian who has lived for hundreds of years, and Bai Ling, the Wutian Book Spirit who has taken human form, he glimpses the horror behind the erasure of history: Liu Bowen sacrificed his body to strengthen the seal under the Nanjing City; Emperor Chongzhen used his imperial blood to make a last stand before hanging himself in Meishan; even some of the strange orders of Empress Dowager Cixi had "empty" whispers behind them.
Now, the last prosperous cycle is coming to an end, and the cracks in the dragon's veins are spreading across the country, centered in Beijing. Strange incidents occur frequently and people are panicked. Lu Mingyuan must find a way to re-strengthen the "Dragon Veins" from the vast sea of history books and relics before the seal completely collapses. But he didn't know that when he was staring into the abyss, the "empty" that had been suppressed for five thousand years was also staring at him in countless nightmares.
