If creating the Fourth Primordial Spirit Armor was a process of gradual accumulation leading to a sudden breakthrough, like water naturally flowing into channels.
Then, Wei Cheng's attempt to research and forge the Fifth Primordial Spirit Armor didn't have many advantages.
After all, the creation of the Fifth Primordial Spirit Armor was an extremely difficult challenge.
It represented the ultimate achievement that a mortal could reach.
Five, this number implied incompleteness, suggesting a need for further progress before reaching ultimate perfection.
That was the Immortal Spiritual Armor.
The Immortal Spiritual Armor could be cultivated in up to nine layers, which was the path Wei Cheng faintly sensed.
Nine layers of Immortal Spiritual Armor, along with five layers of Primordial Spirit Armor. Didn't they make up the endpoint of the Great Tao?
This was the goal pursued by all Immortals, and naturally, it was also Wei Cheng's goal.