This Man Comes from the Qin Dynasty

The modern-day Li Donglai transmigrates to the Qin Dynasty and seizes Ying Zheng's elixir of immortality. Starting in the Qin Dynasty, he passes through cycles of reincarnation until he lives all the way to the modern era. After a thousand years of upheaval, his footprints are scattered across the world, and the foundations he has laid are beyond imagination. The story begins when he returns to the twenty-first century from an unfamiliar planet in the vastness of space. By then, the power he has spent two thousand years building already spans the entire Earth, reaching every corner of the world.