The First Criminal Judge of the Zhenguan Era

In the spring of the second year of the Zhenguan era, Li Jiancheng's tomb collapsed with a loud crash.
The guards cut open the frozen coffin, and inside was only a blood-written prophecy:
"On the fourth day of the sixth month of the ninth year of Wude, it rained."
—This is the date of the Xuanwu Gate Incident.
The corpse inside the coffin has vanished!
Li Shimin was furious and ordered an investigation into Li Jiancheng's body.
Unexpectedly, at this time, Li Jiancheng's ghost suddenly appeared in the world and massacred several officials. Rumors began to circulate among the people that "Li Jiancheng was unwilling to be killed at Xuanwu Gate and turned into a vengeful ghost to take back the world."
People inside and outside the court were filled with fear and unease, and the common people lived in constant fear.
Enraged, Li Shimin ordered Minister of Works Pei Ji, Minister of the Imperial Secretariat Du Ruhui, and Imperial Censor Wei Zheng to lead the three judicial departments to investigate, but they were still unable to stop Li Jiancheng's ghost from killing people.
Just when they were at their wits' end, a top detective from the future arrived...
Thus, the Ministry of Justice welcomed its chosen one.
[Ancient crime-solving, genius detective, fast-paced and enjoyable, no reading barriers, welcome to the pit!]

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