Who Will Spend the Golden Years in the Sapphire Case?

She is the princess of the Flower Clan, and he is the spirit transformed from a Yao Qin next to Lingbao Tianzun, one of the Taoist ancestors of the Sanqing Dynasty. He killed her parents on the battlefield, and she was sent as a hostage to the Yuchen Palace in Yu Yutian. Then, he became her master. I don't know where love started, and I don't know where hate ended. A bad relationship lasted for three lives. On Yufan Mountain and by the Lancang River, what kind of past love and old grudges are hidden in the memory of the previous life...