When Bai Xiyun woke up, she had somehow transmigrated into the body of Bai Zhongtian's eldest daughter. Bai Zhongtian was the king of the silk trade, and after her transmigration she was married off in someone else's place to Leng Yitian, the son of a salt merchant rich enough to rival a nation. But he already had someone he loved. Wanting to help him be with the woman he loved, Xiyun begged her father-in-law to grant her request. Instead, she unexpectedly learned that the woman he loved was not as simple as she seemed.
Unwilling to see the first person she had met in this world come to harm, Xiyun swore to uncover the whole truth. With his friends at her side, she embarked on an incredibly difficult path. But once she learned everything, she chose to jump off a cliff so she wouldn't become a burden to him.
By the time Leng Yitian learned the truth, Xiyun had already disappeared. Only then did he realize that everything was connected to the woman he loved. Xiyun's sacrifices for him made him understand that the woman he loved most in this life was the one who had always given everything for him, even though they had never truly loved each other.
With Xiyun missing, Leng Yitian, master of the Shadow Sect, ordered every member of the Spirit Jade Palace slaughtered.
When Xiyun finally appeared before him, she remembered everyone except the one she had risked her life to protect: Leng Yitian. Seeing her like that, Leng Yitian decided to let her go. But when a child unexpectedly came into the picture, he stayed by her side.
Though she had lost her memory, Xiyun knew perfectly well that he could not abandon the people who had fought alongside him. Smiling, she asked him to buy her a gift, then sent him on his way.
At their final meeting, he finally understood that the woman he loved had never loved him at all. When she drove a sword into his heart, he saw the woman who had always given everything for him and said only, “I promised you that if you ever got lost, I would find you.”
