This work takes the advancement of ingots as the core context. Bronze ingots integrate the three worlds of Shooting Condor, Lu Xiaofeng, and Chu Liuxiang. They advance to black iron, spiritual patterns, and purple gold ingots in sequence, and will later transform into fairy gold and Hongmeng ingots. Following the order of promotion, world joining, domain division, and world creation, the nine classic martial arts worlds are integrated to create the Small Thousand Worlds of Martial Arts and the Return of Nine Martial Arts into One World. The world is divided into the Eastern Region, the Romantic Heroes Region, the Central Region, the Orthodox Region of the Central Plains, and the Northern Region, the Extraordinary Martial Arts Region. The geography, martial arts, and power of the three regions are perfectly interconnected, and the low, middle, and high martial arts systems are seamlessly connected, creating a legend of the nine martial arts uniting into one and taking charge of the martial arts era.
