Daqin: the First Emperor Passed Away, but I Endured It for Twenty Years and Was Born

The modern male protagonist travels through time and becomes Ying Jia, the twelfth prince of the Qin Dynasty, who has endured dormancy for twenty years to survive. When the First Emperor faked his death and the court was in chaos, the national destiny system was officially activated. In order to seek an eternal appearance and a way back home, he entered the situation forcefully, intercepted the imperial edict, controlled the court situation, smashed Zhao Gao's conspiracy, and saved the declining Qin Dynasty against the will of heaven.