Si Qin, the best luthier in the world, accidentally gained memories of his past life and learned that he had made a vow to his true lover that he would never leave her for the rest of her life. Therefore, he withdrew from the world, disappeared, and searched hard for his lover in his previous life. Then, Siqin met Qi Tianyang, a young man from a wealthy family, and had an indescribable affection for him. After learning that Qi Tianyang was his lover in his previous life, he was even more delighted, but he wondered whether his love for Qi Tianyang was just because of his previous life, and it was not his own wish. At this critical moment, he learned about Qi Tianyang's marriage. He understood that he loved him from the bottom of his heart, but it seemed that he had lost Qi Tianyang in this life, so he suppressed his inner despair, hoping that Qi Tianyang would be happy in this life, and left alone. At this time, Qi Tianyang also discovered his unusual love for Si Qin... Can the love from the previous life continue? Will the ultimate love come to the world? As beautiful as the guqin music "Xia Wu Wu Chu Yang"...