She Awakened a Military Arsenal System and Usurped the Throne. Now They're Panicking

[Female-oriented, strong heroine + heroine with an arms System + winning over the deposed emperors of six kingdoms + one male lead + multiple male supporting characters + everyone is chaste + happy ending]

The heroine, Ye Xuanling, transmigrates to ancient times and awakens an arms System.

In a dynasty that fights with cold weapons, a few crates of grenades and several light machine guns are enough to crush the opposition with ease and make a successful bid for power.

This alternate ancient world has endured thirty years of war among six kingdoms. The land lies devastated, and the people are destitute.

Her System's mission is to unify the world. Only then can she return to the modern era.

She leads her army into the imperial palace of the Yun Kingdom.

When the emperor of the Yun Kingdom learns the city has fallen, he spits blood and faints.

When he opens his eyes again, the dynasty has already changed.

The other five emperors are frantic: How far have they gotten?

My country is rich! Attack me first!

My country has beautiful scenery! Attack me first!

My country has delicious food! Attack me, attack me!

My country has handsome men! Handsome men! Endless surprises!

My country is the home of romance novels! You know what I mean, attack me first!

Why are all the kingdoms clamoring to be conquered?

After annexing the six kingdoms, all she wants is for their deposed emperors to work for her, but they are all green with jealousy and desperate to keep her by their sides.