If I Say You're the Villain, Then You're the Villain

Shen Shixun transmigrates into the Great Yu Dynasty, where demons run rampant. Armed with an intelligence System, he becomes a Night Watchman in the Astronomical Observatory.

The original owner of his body was the Observatory's deputy envoy, a weakling who let everyone walk all over him.

Shen Shixun puts an end to that cowardly act. Using his intelligence System, he arrests countless "innocent" people and tortures them until they "confess."

Within the Great Yu Dynasty, the demonic Brightness Sect has risen in rebellion. To the south, the Great Chen Empire watches hungrily, while demons and monsters wreak havoc in the north. Beset by troubles within and without, the dynasty teeters on the brink of collapse.

With his intelligence System and modern knowledge, Shen Shixun cracks the temple murder case, exposes foreign spies in the imperial court, crushes the Brightness Sect rebels, defeats the elite forces of the Great Chen Empire, and slays the demons and monsters of the northern frontier. He becomes the iron-blooded Night Watchman everyone fears.

"You look like a remnant of the Brightness Sect!"

"My lord, I'm innocent!"

"Innocent? If I say you're a villain, then you're a villain!"

(Multiple female leads, with all kinds of female characters. The protagonist is interested in them all, so please show your support!)