What is the story of the Korean TV series "Zhi Yi Mei"?

It's about an emperor's younger brother's house. The emperor found that there were two suns on the roof of their house, which would pose a threat to himself in the future and ordered to frame his younger brother's family. The son of that family left unexpectedly, but lost his memory. Later, when I grew up, I was once recalled to raise money for my adoptive father to participate in a sports competition. Later, he decided to do chivalrous things with corrupt officials' money. Even if he was a thief, he went to the palace step by step to find out why his father was killed and take revenge. In fact, the revenge child was the sun later.