Lin Wan, a young urban conservator of cultural relics, forms an unexpected spiritual connection across time with Su Jinshe, a court painter in the High Tang dynasty, through a damaged silver butterfly ornament from the Tang dynasty. Though they live in different eras, they can sense each other through dreams and certain heirlooms, and even pass objects and messages between them indirectly. As Lin Wan uses her modern knowledge to help Su Jinshe survive the perilous imperial court and recover lost artistic techniques, clues left behind by Su Jinshe also guide Lin Wan toward uncovering a modern conspiracy surrounding the lost national treasure, the Celestial Pivot Scroll. Past and present mirror and rescue one another in an epic tale of heritage, women's strength, and beauty that endures forever.