The year he returned to the capital, Xu Muxuan just wanted to save his best friend Zhou Mengxi who drowned in his previous life. But when she pushed open the door of Huaihua Hutong, what she saw was the current prince wearing a dragon robe. He chuckled: "I am the one playing Zhou Mengxi in Mobei." At this moment, she was shocked to realize that the Malan flowers on the grassland and the oaths made on the moonlit night were all chess games. But this time, it was her turn to play the chess game.