The Eternal Emperor Secures the Realm

This is a transmigration short drama where Qin Zheng becomes the Great Zhou Emperor. To resolve the rebellion of the feudal lords and secure his throne, Qin Zheng faces accusations from the Northern Vassal's envoys and a faction led by the Empress Dowager while secretly having eunuchs manufacture black powder to ambush the feudal armies. After decisively killing the envoys demanding his men's heads, Qin Zheng leads the court to defend the enemy. Amidst everyone's doubts, he resolves the feudal chaos with a single arrow, securing his kingdom.