When she was ten years old, Ling Xi was sent to Gu's embroidery workshop and met Gu Yanzhi, the only son of her employer. He gave her the best silk thread, took the blame and punishment for her, and made 3,600 bamboo leaf knots on the threshold of the ancestral hall. Ling Xi cut out a picture of "Two Magpies Stepping on a Branch" and wanted to give it to him, but she ran into him getting engaged. She hid the embroidery drawings at the bottom of the box, hid all her youthful feelings, and left the embroidery workshop.
Eighteen years have passed, and Ling Xi has become a well-known craftsman with his unique skill of splitting threads. Someone from Suzhou hired her to make threads at a high price. The moment she opened the door, she saw the man from back then standing at the end of the corridor. He handed her an old, knotted silk thread and asked her if he could split it again.
The embroidery thread will fall apart if it is too loose, and it will break if it is too tight. It took her eighteen years to understand that love is like a thread, it must be just right to retain its luster. It's just that they are separated by other people's marriages and have passed each other for eighteen years. Can they still reconnect the old thread?