A torrential storm sends Jiang Xue reborn to the scene of the car accident she suffered at fifteen. This time, she sprints barefoot and throws herself in front of her father's car. As fate's gears start turning again, transfer student Lin He enters her life with a mysterious red cord. He is the only son of the director of the Education Bureau, and the award-winning actor who will take the entertainment world by storm ten years later. As memories from two timelines overlap, shattered glass marbles conceal the bloody secrets of her past life: the rainy night her father was left paralyzed, the winter she was pinned in a girls' restroom stall by the school bully, and the forbidden love between an award-winning actor and a SWAT officer. In this life, she holds the key to the butterfly effect, but as she changes who lives and dies, she has no idea she is already on a collision course with herself from another timeline. When corporate schemes clash with a top-tier star's dazzling aura, what lies wrapped in glass candy paper: a sixteen-year-old's first love, or a life-and-death game entangled for thirty years?