Chen Yue, a graduate student in the Department of History, was accidentally transported back to the spring of 500 BC by a Warring States bronze mirror during an archaeological excavation. This is the dawn of Wu Yue's struggle for hegemony, and the crater where the thoughts of various schools of thought collide. He doesn't understand the language or the writing here, and his modern equipment is out of place here. With knowledge that is far ahead of his time and vague memories of historical context, how will he survive in this era when etiquette has collapsed and the strong are respected, and what traces will he leave in this magnificent historical river?