A Thirteenth Universe formed in the Chaos. However, it was forcibly absorbed into the First Universe.

Every universe had absolute laws. Theoretically, only nine Macrocosm Ancestral Gods could be born in one universe.

As the oldest universe to exist, the First Universe had already reached the maximum capacity of Macrocosm Ancestral Gods that could exist in their universe. However, they merged the Thirteenth Universe with theirs, and more powerhouses broke into the Macrocosm Ancestral God Rank.”