Immortal arts were created during the Ancient Sovereign Mystic Nether Era by a human Great Emperor who combined ancient spells.
During that period, which was a critical moment in the Ancient Sovereign Mystic Nether's conquest of all races, the spread of immortal arts among the allies of the human race played a significant role. These races made great contributions to the Ancient Sovereign Mystic Nether's unification of Wanggu.
However, the price was extremely high.
Those who used immortal arts suffered varying degrees of side effects according to the level of the immortal art.
In light cases, their vitality would be depleted; for the severe, it shattered their foundation.
Therefore, after Wanggu was unified, the immortal arts were bound in the Immortal Art Pavilions and sealed as forbidden arts.