Gu Xu, the youngest senior agent of the Superpower Bureau, codenamed "Ice Blade", disguised his strength and went undercover to work for the dark superpower organization "Dark Abyss" in order to find out the truth about the death of his parents in a laboratory explosion. During the mission, he unexpectedly awakened dual powers. He could not only control ice power, but also sense the emotions and thoughts of others. This "emotional resonance" power became his greatest help as an undercover agent, but it also made him involved in a deeper conspiracy.
He worked step by step in An Abyss, pretending to be cold and dormant, while secretly cooperating with Lin Xiaonuan from the Equipment Department of the Superpower Bureau to crack An Abyss's human experiment conspiracy and rescue the imprisoned superpowers. However, as the investigation deepens, he discovers that An Yuan's power is far greater than imagined. Gu Yuan (Gu Xu's uncle) is not the real mastermind behind the scenes. There is another hidden reason for the death of his parents, and a mysterious man who looks exactly like his father has even appeared.
There are layers of temptations and deadly traps in the dark abyss before, and secret betrayal by ghosts with special powers in the back. Gu Xu and Lin Xiaonuan fight side by side, struggling on the edge of life and death. They must complete the undercover mission, uncover the real murderer behind the scenes, avenge their parents, but also protect each other, fulfill the promise of "going back alive to eat sweet and sour pork ribs", and uncover the ultimate secret of the Gu family's bloodline and the origin of their superpowers.
