After exchanging greetings, the Star Sea Old Ancestor addressed the other Spirit Transformation cultivators of the Azure Profound Realm.
"Fellow Daoists, mobilize the Territory Protection Grand Array and establish a defensive line."
"Understood."
The Spirit Transformation cultivators responded and immediately brought out the tokens controlling their respective formations, continuously channeling spiritual power into them.
As a roaring formation sound echoed through the heavens, the Fifth Rank Superior Grade territory protection formation that enveloped the entire Azure Profound Realm rapidly drew upon the boundless power of heaven and earth. It transformed into a massive barrier that shrouded the Boundless Sea Region Cultivation World.
Its power was at least comparable to a Fifth Rank Middle Grade defense formation.
All the invading evil ghosts were blocked outside, driving them into a furious rage as they began bombarding the projection of the formation like mad.
Meanwhile, the grand formation also produced several screens of light, covering places such as the Northern Wilderness Cultivation World and the Central Province Cultivation World. Their power was somewhat weaker, but they still barely reached the level of Fifth Rank Middle Grade defensive grand formations.
Still, they were somewhat inferior to the one protecting the Boundless Sea Region Cultivation World. The Territory Protection Grand Array had limited power, and producing so many formidable light barriers was already no small feat.
Moreover, the Boundless Sea Region Cultivation World was the main battlefield.
High in the sky, the enormous spatial rift connecting the Heaven River Ancient Battlefield's You Po Ghost Region happened to be located somewhere within the Boundless Sea Region Cultivation World.
As for the other cultivation worlds, although they were far from the battlefield, countless mortals still lived within them.
The headquarters of Spirit Transformation forces such as the Ling Clan were also located there. Furthermore, to deal with