When Gu Chen was twelve, she watched her father kill four people right in front of her, then get shot dead in a hail of bullets. After more than 1,200 dark and chaotic days and nights, she became the fastest girl in the province. Only when she was running could she forget that she was the daughter of a murderer. Then she met him, a boy with bright eyes and the scent of seaweed, and thought she could finally stop running. She never expected even deeper darkness to be waiting for her...