The Sword of Dawn or also known as Changye Kaituozhe is work of fiction written by Yuan Tong.
The main character died in a plane crash accident, he was transported to a strange spatial installation orbiting a strange alien world with a physical body, for over a hundred thousand years he observed the emergence and evolution of life and the formation and fall of civilizations until he woke up in a coffin, the story follows Gawain, the Grand Duke and a founder of the Kingdom of Ansu.