Cloud-Perching Cave.
Chen Changming, seated cross-legged in the depths of the cave abode, slowly opened his eyes.
The faint Demonic Qi swirling around him also withdrew into his body at that moment.
After ten years of secluded cultivation, he had finally strengthened the Undying Demon Heart Art for the second time.
Each cultivation of the Undying Demon Heart Art took quite some time—at least three days—so over these ten years, he had only been able to strengthen it once.
Even after being strengthened a second time, the Undying Demon Heart had become vastly more powerful.
Before, he could unleash ten times his strength. Now, he could unleash a hundredfold!
Even though Chen Changming had broken through to the second layer of the Spirit Transformation Realm and had constantly tempered his body with the Immortal Furnace Body-Forging Art, using the Undying Demon Heart to unleash a hundredfold power still placed a certain burden on his body.
He would suffer some minor injuries, but that was nothing. He could use the Spring Return Immortal Art to heal himself.
Besides the injuries, attacks with a hundredfold power would also rapidly drain his stamina—but the Spring Return Immortal Art could restore a certain amount of stamina as well, so there was no need to worry.
After the Undying Demon Heart Art was strengthened twice, Chen Changming's vitality also grew even more vigorous under the influence of the Undying Demon Heart!
Even if he suffered a devastating attack in a short period of time and his body was severely damaged, the existence of the Undying Demon Heart would allow him to preserve his life and avoid death.
The Slaughter Demon Sword Art had likewise been strengthened.
This inheritance of the Ancient Demon had been strengthened by Chen Changming for the third time!
The power of