"First, you need sufficient spiritual mechanisms and mana."
"Secondly..."
Zhang Yu looked at the size of the Immortal Cave Heaven before him and thought to himself, "A sufficiently large space is also necessary."
To enhance the concentration of spiritual mechanisms, Zhang Yu naturally thought of the Breathing Machine first.
But when Zhang Yu actively tried to capture the Breathing Machine that he used to encounter from time to time, he found that he couldn't find it at all.
Then Zhang Yu thought of the Hundred Corpses Melting Master inside the Immortal Cave Heaven.
"The Hundred Corpses Melting Master is originally a Breathing Machine production line, could it be used to manufacture Breathing Machines?"
"But collecting the materials is a bit troublesome."
While pondering, Zhang Yu set his sights on a few other Corpse Items.
With a thought from Zhang Yu, the Hundred Corpses Melting Master spread out hundreds of Qi-Blood conduits, wrapping around a stationary Corpse Item.
