On the edge of the polluted city, the rusty smell of the docks hides the secret of Boy Hat-chan. He was once an orphan crushed by fate in a slum. He was picked up by the hatmaker Uncle Chen. In a small shop full of stitches and warm light, he thought he had grasped the stability of his life. But when Uncle Chen died of illness and his only light, Chen Min, was murdered by gangsters, he pierced the darkness with a knitting needle and embarked on the road to escape.
The sweat of carrying cargo at the dock, the handwriting under the night school lights, and the blood stains of gang wars have become his triple identity. During the day, he was the "inconspicuous" red stick in Heliansheng, allowing his opponents to encroach on the territory, seemingly cowardly; at night, he was an honors student in the law school, using a pen to wander between the account books and the code, keeping the gang's white industry in order, and secretly accumulating strength. No one knows what kind of storm is hidden in the heart of this young man who carries hardship on his shoulders and holds a pen and a gun in his hand - what he wants is never to survive, but to subvert this rotten order.
When the mysterious super power awakens at the fingertips, and when the hidden conspiracy spreads over the city like oil, Hat-chan stands in the gap between light and darkness, and finally understands: those despised weaknesses are all disguises; those hours of studying hard late at night will eventually turn into a sharp blade that pierces the darkness. His revenge has never been limited to repaying blood debts, but to sew a "hat" that can protect people like him in this dirty land from the wind and rain.
In this chess game in which the weak defeat the strong, every step hides an unexpected reversal. The arrival of superpowers makes this contest go in a direction that no one can predict...
