Through the journey of Tang Long, a food delivery courier, this novel explores a central theme: true strength isn't about conquering others, but conquering the fear and greed within yourself; true success isn't about reaching the summit, but leading a group of people out of darkness and into the light.
Tang Long uses the wisdom of the I Ching to fight his way through the bloody violence of the underworld and the boundary between the light and dark sides of human nature, until at last he enters a bright future. It all begins with nothing more than a yellowed copy of the I Ching and a dying old man's last request.
As Feng Bo puts it, “The I Ching isn't a book for fortune-telling. It's a book that teaches you how to live.” Tang Long learns how to live, and teaches others how to live, too. That is the heart of this novel.