Yang is a plain and unassuming girl with the strange ability to see not only how long a person has left to live but also the red string of fate connecting two soulmates together. She spends her days working in a dodgy little shop in the slums of Chinatop, a booming megapolis built high in the trees, until one day, a mysterious girl missing a string of fate appears at the shop, claiming to be searching for someone. As Yang learns more about the mysterious girl, their lives become entangled and the girl’s search becomes direr as disasters begin to befall the city. Over time, the two strangers become friends and eventually…something more?