A rational madman uses logic to see the world clearly, and still dares to stick to his heart regardless of gains and losses. Young Chen Zhi is accustomed to using reason to isolate himself from the harm in the world. His childhood of being dependent on others and his cruel experiences as a teenager made him learn to weigh the pros and cons to preserve himself. In order to get rid of his confusion, he stepped into the military camp and went to Karakoram to guard the border. The wind and snow border tempered his will and allowed him to understand the weight of perseverance. After returning from the army and returning to the secular world, the former border soldiers fell into the torrent of reality, and faced academic, career, and emotional problems one after another. When the rationality of precise calculation meets the hot heart, he repeatedly swings between reason and "madness". This is a realistic coming-of-age novel that tells the story of a young man who has been repeatedly polished by fate, how he tears away his shackles, accepts the cracks in his body, and finally completes self-reconciliation and finds his own way of survival.