Once a kidnapped heiress, Ning Miao transforms into the world's top hacker and leader of an assassin organization, returning to Xihai City under a hidden identity to seek revenge. Pretending to lodge with the Qin family, she engages in mutual probing and suspicion with her nemesis, Qin Chan, the lord of the dark web. Both hunter and hunted, when their disguises fall away, the world learns that the fragile young woman is none other than Sky, the name that strikes terror into the globe. In this meticulously crafted game of revenge, who is the ultimate chess player?