My name is Deng Jiu, codenamed "Gui Ling", and I am the top scavenger of the Black Prison. Three years ago, I accepted the ultimate mission - to return as a "wasted son of the Deng family" and infiltrate a super wealthy family that was harmonious on the surface but rotten on the inside. Everyone in the Deng family is a hunter with superb acting skills, especially the seemingly kind head, who actually controls the empire's largest dark web smuggling line. I hold the golden finger [Cause and Effect of All Things] in my hand, and I can discern the smallest entanglements of interests and fatal weaknesses between characters. In this splendid prison, while I was playing the role of a playboy who could be bullied by others, I was weaving an intelligence network that could subvert the entire family. However, when the core secret of the Deng family - the cursed bottle of potion that can "resurrect" people - was related to the death of my brother from the former prison, cracks in my identity finally appeared. Now, the second uncle who toasted to me at the family dinner, was there temptation or murderous intent hidden in his eyes? Under the skin of "trash" is the zero returner in the abyss. When the disguise begins to collapse, should I choose to continue acting, or should I let the entire Deng family become my real sacrifice?