Shen Chaoying, the princess of the subjugated country, practiced medicine to make a living and picked up a "shadow" dead soldier from the general's palace. He doesn't know pain and doesn't speak. He is a knife that has been tamed by medicine and whips. She pulled out arrows for him, gave him medicine, and taught him to speak - the first time the knife tasted pain, and the first time he learned to laugh. But the four words "orphan of the former dynasty" are a reminder of life. The Fuguo Alliance forced her to die for her country, and before the poisonous wine entered her throat, she thought: She will not be a princess in the next life, but only his wife. She didn't know that he was a god who descended to earth and endured calamities. After her death, he went to the underworld, looked through the book of life and death, and found a line: Shen Chaoying, enter the animal path, and atone for a thousand years. He closed the book of life and death: "Then just wait. It's just a thousand years."
Thousands of years later, the fog began again. He was covered in blood again and crashed into her medicine valley.