Great Tang: I'm a Divine Detective in Chang'an

After transmigrating to the Tang dynasty ten years ago, Lu Qing has solved ninety-five cases, with just five more to go before his cheat can be unlocked. But from the start, he is thrown into the imperial prison and forced into a marriage with Princess Changle. He smiles as he walks out of the prison: solve the secret-chamber murder of the Turkic prince in three days, and earn a lifetime of freedom. When the supposed haunting is peeled away layer by layer, the real culprit turns out to be... Your Majesty, I hereby decline to marry the princess.