Since it was a gift for An Jing, You Ruhui quickly took out a box.
The box was not large, made of xuanwood. Inside lay an octagonal prism. At a glance, it resembled an Eight Trigrams disk, about the size of a heart, freely circulating spirit qi and comparable to a first-stage Internal Strengthening martial artist.
The octagonal prism was encased in a layer of water jade, while its interior was vivid red, seeming both like a medicinal pill and flesh and blood. It pulsed continuously like a heart, giving An Jing a familiar feeling.
"This thing..."
He picked up the octagonal prism and examined it closely in his hand, then suddenly understood.
An Jing looked at You Ruhui and said with certainty, "This is a living Spirit Qi Furnace you refined from your own flesh and blood?"
"Yes."
You Ruhui nodded. "It is nourished with essence blood and vital qi, shaping a flesh-and-blood Spirit Qi Furnace. The inspiration came from the 'Spirit Cores' within the many modified Demon Spirits of the Blood Sea Demonic Sect, though I incorporated some details from the Dragon-Storing Bottle and Dragon Pearl."
"I call it the 'Spirit Vein Furnace.'"
"Really impressive!"
An Jing continued examining the Spirit Vein Furnace intently, growing more astonished the longer he looked.
The Spirit Qi Furnaces of the Tianyuan Realm were essentially batteries with Spirit Stones as their cores. Though they stored spirit qi, cultivators had to absorb and convert it themselves before using it. Being able to use six or seven parts out of ten of their spiritual power was already considered excellent.
The Dragon-Storing Bottle, meanwhile, used Dragon Qi as its core. It was a high-voltage battery capable of purifying and converting high-grade spiritual power. It was itself a precursor to the Dragon Pearl, and thus surpassed