The Last Emperor of Great Xia: The Entire Court Is Full of Spies

[Beautiful women + conquest + emperor + alternate history]

A quick heads-up: this isn't a simplistic story, and even the supporting characters have a decent amount of intelligence.

Long Qian transmigrates!

He becomes the emperor of the Great Xia Kingdom.

A peak start from the very beginning.

But it turns out the difficulty is set to hell.

Luckily, the System arrives right on schedule...

(The System appears only at the start, granting him imperial power and the potential to become a great emperor.)

He wins Su Daji over.

To keep his throne, he must fight...

The Later Qin Emperor: “I will sweep across the six realms and become an emperor for the ages...”

The Later Han Emperor: “I am the son of the Red Emperor...”

The Later Tang Emperor: “I will build a golden age for the Tang...”

The Later Song Emperor: “I'll disarm the generals over a cup of wine and share the realm...”

The Later Yuan Emperor: “I rule the largest country in the world...”

The Later Ming Emperor: “The realm belongs to the Zhu family...”

The Later Qing Emperor: “Heh heh! Manchus and Han are one family. I am the rightful ruler...”

The Later Zhou Emperor: “I'm so tired...”

The Later Shang Emperor: “I'm even more tired...”

Long Qian trembles as he replies: “Y-you dare! You're all vassals of Great Xia...”

(Alternate history: None of the characters are meant to represent real people.)