If the genuine "The Book of Technique of Desire and Emptiness" could be used to comprehend the ultimate Way, then this skill would undoubtedly be a divine technique.
Though the Nine-tailed Fox had received the Bloodline Inheritance of the Ancestor of Qingqiu Fox, like the Little Dragon, she was also limited by the great threshold of her own soul and authority. Even if the bloodline fully merged and the Shell reached the Immortal or Eternal level, it would still fail to exert the true strength of the Shell due to the weakness of the soul.
And if "The Book of Technique of Desire and Emptiness" really had such effects, it could greatly resolve the issue of the Nine-tailed Fox's weak soul.
As for the side effects of this cultivation technique, they were completely non-issues for him who possessed the Flesh Authority.
Of course, Lin Xun's thoughts were entirely driven by the purpose of mutual strength enhancement…
"I wonder if Valkyrie could cultivate this technique…"
