Yuyin Xun, a talented and perfect professional singer in this century who can sing, dance and play music, has experienced life and death, and has long seen through the world of mortals. Maybe it's because she didn't deserve to die, maybe it's because her love is unfinished. She attempted suicide and traveled back to the Luoyue Dynasty thousands of years ago with the violin she loved most. As Xiang Wanyan, she married the cynical fourth prince Lu Yehao as her concubine. It tells the story of how the two of them met, got to know each other, and finally fell in love. Can the destiny of God prevent true love from regretting and live up to the promise made for thousands of years? It tells a hard-won love story and tells us that love can transcend different cultural backgrounds and classes, transcend time, space and all barriers, and still be romantic and beautiful.