In this bizarre era, some people have stepped into the myth of wealth, while others have fallen deeply into the swamp of desire. Li Ye, an ordinary young man from a small town in the north, accidentally fell into the cage of a northern pyramid scheme due to the temptation of a "high-paying job". His mobile phone was confiscated and his freedom was deprived. What greeted him was endless slogans, endless brainwashing and step-by-step deception. Between lies and obedience, he learned to survive and to lie. From a recruit who was "offlined in development" to a trader who planned telecom fraud, the black hand of fate pushed him step by step into northern Myanmar, that modern purgatory-like park, where a phone call can hollow out a family and a sweet word can drain a soul. He has been a victim and a perpetrator. He learned the "art of controlling people" in the arena, understood "slang", met brothers who licked blood with their swords, and witnessed the collapse of trust and life. This is a story about degradation, betrayal and redemption, and it is also a long portrait of the contemporary world. In the cold wind of the north, a man is looking for his way back between loss and regret.