In the Eastern Han Dynasty, I Activate the Great Qin Destiny System from the Start

Qin Yuewen transmigrated to the late Eastern Han dynasty and spent sixteen years as a minor county magistrate. Then, on the day his father died, he handed Qin Yuewen a letter: There was a family genealogy beneath the incense table in the ancestral hall. He pried up a paving stone and took a look: King Zhuangxiang of Qin, Qin Shi Huang, Prince Fusu... The last line read: Sixteenth-generation descendant, Ying Yuewen. So the name "Qin Yuewen," which he'd used for over a decade, was supposed to be Ying Yuewen?! Before he could wrap his head around it, ten thousand Xiongnu cavalry had already arrived at the city gates, threatening to hang the heads of everyone inside from the towers like lanterns once they broke through. Qin Yuewen sneered and bound himself to the 【Great Qin Mandate System】. His starter pack immediately yielded three thousand Snow Dragon Riders. The Xiongnu Left Wise King: ??? Weren't you supposed to be some tiny little town? With one slash, he took down a Left Wise King; with one thrust, he felled Hubake. He even picked up two mighty generals along the way, Zhao Zilong of Changshan and Xu Huang. The beauty Cai Wenji was practically crying and begging to return with him to Hua County... Qin Yuewen stood with a hand on his sword. "I won't sheathe my blade until the Xiongnu are gone. The Han Empire's realm is something my Ying family will win back with our own hands!"