Lin Wan can see the cracks between people when they break apart. Stitching one costs her a year of her life. She's twenty-three and has already stitched eleven. Before her master died, he left her one instruction: Never fall in love with anyone. Later, a man named Gu Chenzhou came to her door. An old wound, more than a decade deep, shifted when he stood before her. Only later did she realize that the summer she missed at eighteen had led straight to this man. She cut away her own time, and with it, that entire summer. Now she wants to find that path again, but the price of finding it is the little time she has left.