C1112 Four Great Families
The Yama Islands were, in reality, the four great clans that resided within the sea. In his early years, the Yama Sea was very chaotic, with many powers fighting nonstop. After years of fighting, the ones that survived were all powerful forces, and of these, Zhan, Yan, Yao, and Luo Families were the strongest.
The continuous fighting caused the various sects and clans to suffer heavy casualties