Daqin: I! The Unrivaled Prince, Guarding the Great Wall for Eighteen Years

"Young Master Changying, go to the border immediately and guard the Great Wall. If you are not summoned, you are not allowed to return to Xianyang for the rest of your life!"

An imperial decree sent Ying Changying to the border and he was not allowed to return to Beijing until his death!

He thought he would die on the battlefield a few years later, but he unexpectedly awakened the [National Defense System].

"Guard the Great Wall for one year and be rewarded with the Dragon Elephant Prison-Suppressing Power!"

"Guard the Great Wall for three years and be rewarded with the Dragon Gallbladder Bright Silver Spear. With Changying in hand, dare to bind the blue dragon!"

"Guard the Great Wall for five years and be rewarded with the Beiwei Army and Wu Mu's posthumous letter!"

...

Eighteen years later, the First Emperor died, the world was divided into four parts, and the nine states jointly attacked the Qin Dynasty!

Just when the princes from all walks of life broke through Xianyang and the building was about to collapse, a silver spear appeared out of nowhere, and the world changed color!