Li Bei's parents died when he was young. He was accidentally rescued by the mythical character Li He. Li He saw that he was hardworking and smart and recognized him as his son. When the happy Li Bei was a teenager, Li He became a useless person for some unknown reason and had nothing. The only thing in Li He's heart is for his son Li Bei to marry his brother Ye Hetian's daughter Ye Xue. This is also his only promise. Li Bei married the Ye family for his father's promise. During the five years, he worked hard as a cow and a horse, and was looked down upon. He thought that five years would change Ye Xue's view of him, but he did not expect that what he would bring with him would be a green prairie above him...