If Qin destroyed the six kingdoms, not with swords, but with a cleansing network - how would history be written?
Xiang Mo, a time traveler who came to the late Warring States period with modern financial knowledge, created "Da Qin Hui" in Xianyang - the first cross-city clearing system in human history. He used certificates to replace soldiers and horses, and used bad money to drive out good money, allowing Han, Zhao, Wei, Chu, and Yan to lose themselves economically before the war broke out. But when he faced the Queen of Qi - a woman who used gold to buy back sword coins in the third century BC and relied on her will to maintain currency credit for forty years - he discovered for the first time that the "future" he brought could not settle the "past" she left behind.
Alternate history × financial war. Gresham's Law, liquidation network, monetary hegemony - what will happen if these modern concepts are thrown into the world of copper coins at the end of the Warring States Period? The answer is in this book, and every dollar speaks for itself.
Purpose: Credit is not a mathematical problem, it is a human problem - and the value of a good system is that ordinary people do not have to start from scratch.