Doll restorer Yun Zhi holds the "soul-suppressing silk" passed down from his ancestors, which can briefly awaken the remnants of children's consciousness sleeping in broken dolls. When a broken puppet murmured "Uncle Red Raincoat took away my sister," her peaceful repair life was shattered. Piece together clues from centuries of wear and tear on the nutcracker's joints, and pursue the truth amid the reverberations of childlike innocence. She uses needle as pen and silk as ink, listening to those weak "testimonies" and fighting against indifference and neglect. This is not channeling, but the resonance between the heart and things. It is a story of craftsmen using their ingenuity to protect the most fragile lives. What Yun Zhi wants to repair is not only the doll, but also a world that desperately needs to be seen.