Legend has it that the seventy-two-story pagoda was refined by the ancestors of time and space who collected rare objects from all over the world. However, the poor ancestor only completed the first step of the sacrifice in his lifetime.
Countless years later, in ancient times, an unprecedented figure named "Sixteenth Day" was born. He divided the seventy-two-story tower into four, each with eighteen floors.
The first one is completed by the sixteenth day of sacrifice, which is the eighteenth level of netherworld purgatory world.
The second one was completed by the Sword Ancestor¡¯s sacrifice and became an eighteen-story sword pavilion.