Wen Qingwu was born with an immortal body, except for an inch of demon bone on his spine.
Nie Wuyu was born with a mortal body, and only one inch of his spine was immortal bone.
Out of selfish motives, the Wen family stole that inch of immortal bone from Nie Wuyu. Wen Qingwu entered the Immortal Sect and cultivated immortality with the help of pure immortal bones that were rare in a century.
Wutong and Phoenix are indescribably precious.
The inch of demonic bone that Nie Wuyu was moved into was difficult at every turn, and he eventually became a demon.
No place left, no way out.
Concept: What is Tao?