When I Was Reborn, I Traveled Back to the Qin Dynasty and Became the First Emperor of Qin

When I woke up, I became Qin Shihuang. The poor loser Yin Shitian almost peeed in fear as he watched the civil and military officials of the court kneel down and worship. "Your Majesty, the envoys from the six countries want to see you!" The eunuch announced sharply. My hand shook and the jade seal almost hit my foot. Fortunately, the built-in "Eternal Emperor and Immortal Cultivation System" was activated in time: "Novice mission: Build the Great Wall, you can get..." Wait, build the Great Wall? I don't have a good history, but I remember that this thing has been scolded for thousands of years? System: "Host, times have changed. What we are building this time is... The Great Wall of Immortality!" My eyes lit up, now not only the harem has three thousand, but also the fairies can be taken home?