During the troubled times of the Republic of China, Chen Changsheng, a young man who borrowed knives on credit, used the knife as a matchmaker to spy on the secrets of the world. He only takes credit but does not sell, predicts cause and effect, and the account collected is not money, but the life and death of people's hearts. From escaping to taking responsibility, he defended justice in the entanglement of cause and effect and wrote a legend in troubled times.
