The protagonist is the only one who lives forever. No female lead, but there is a harem.
After graduating from university, Xuan Yan goes on a trip. His helicopter crashes in Australia.
When he opens his eyes, he discovers he's transmigrated, but to Australia at the end of the Qin dynasty.
"I'm so awesome. If you're going to transmigrate me, at least send me somewhere better!"
Two years later, Qin Shi Huang's expedition fleet searching for immortals reaches Australia.
With a single declaration, "I am a son of the Dark Bird," Xuan Yan wins the fleet over and renames Australia Southern Continent.
He thinks it would be nice to simply lay the foundations of a civilization, but after a few years, he discovers that he's an immortal.
And so, he takes in refugees, introduces new technology, and establishes the Xuan Dynasty.
While the Central Plains are still locked in battles with cold weapons, Xuan Yan's armies are already driving tanks and flying planes,
sweeping across Eurasia from Australia and conquering the Americas.
On the day the world is unified,
he stands atop Southern Continent.
The history books record:
"The Divine Emperor of the Xuan Dynasty ruled for a thousand years, until the whole world was united."
But Xuan Yan knows this is only the beginning. His goal is the stars and the sea.