This was the core principle of the Ancient Body Refining Technique.
Ever since he'd paused his breakthrough in the Martial Dao due to the contamination, Chu Fan had poured most of his energy into enhancing his Vajra Undying Body.
The Red Flame Stone Marrow Pills gifted by Princess Zhaohua were miraculously effective, but there were only three. Even if he carefully divided them for use, they were not a long-term solution.
The Bone-Burning Root from Xia Yao Hall Master of the Fiery Sun Gang was a secret Body Tempering medicine, but it was just a single root, gone once used.
To temper his body without pause, he could only rely on an ancient Body Tempering profound skill like the Vajra Subduing Demon Skill, which specialized in converting external forces for one's own use.
