Da Qin: Destroy 100,000 Xiongnu at the Beginning

Zhao Chen was reborn in the Qin Dynasty. After turning on the sign-in system, he guarded the Qin ancestral land for fifteen years at the age of three! "In the first year of signing, you will be rewarded with unparalleled inheritance!" "In the second year of signing, you will be rewarded with Yuhuatian and 3,000 factory guards!" "In the third year of signing, you will be rewarded with 5,000 Jin Yiwei!" "..." Fifteen years later, when Jin Yiwei spread all over the world, a decree recalled Zhao Chen to Xianyang, and the time was just before the First Emperor's fifth eastern tour. The ancestral dragon collapsed and the world was divided? It doesn't exist. Let's see how Zhao Chen makes Da Qin reach the top of the world!