The celestial beings stationed in Celestial Heart Province, as long as every few tens of thousands of years the cultivators replace the filters or release the demonic evil spirit mechanism within, can keep the eighteen Demon Cloud Giant Towers running.
Now, with Zhang Jian's optimization, the space within the Cloud-Piercing Giant Tower has been further expanded by him using space-time secret techniques.
Transformed from a single space into multiple layers of space.
Abilities such as absorption, suppression, and endurance have all greatly enhanced.
Ordinary immortals may not understand, but the ancient immortals see it clearly.
Many of them are knowledgeable and proficient in Dragon and Phoenix Treasure Talismans.
However, compared to Zhang Jian's attainments in Dragon and Phoenix Treasure Talismans, they still sigh in admiration.
This also convinces the many celestial immortals.
They just find it unbelievable.
