The Second-fold Immortal Martial arms was too powerful, forcing the Myriad Heavens and Realms to join forces to barely defend against the collapse that was about to ensue.
In the Late Primordial Era, the Ancestral Dao intervened, creating the Chaos Sea, halting the last half of the Heavenly Fate. The Second-fold Immortal Martial involved again in a dispute, igniting a great war, and both sides were severely injured and forced to negotiate peace, creating a Starry Sky Barrier for governance.
Since then, the Great Universe gradually stopped its internal strife and formed the current power structure resembling three balanced forces.
Today, the Myriad Realms only occupied about fifteen percent of the Heavenly Fate, much weaker compared to the Immortal Alliance, yet all parties from Taoist Orthodoxy retained many strategies left by their predecessors, allowing them to protect themselves.