The difficulty continually increased for each level of the Bone Fusion Technique. Even Temple Masters were barely able to receive Level 10. As for Level 11, whether they could inherit it depended on their own ability.
Level 11 was not difficult for Jian Wushuang.
After a while, the Level 11 manual was deeply imprinted on his mind.
Then he went on to Level 12, the last level of the Bone Fusion Technique.
It became hard for him. The moment he started to inherit the Level 12 manual, he felt an overwhelming pressure on him as if his organs were about to be smashed to pieces.
This unprecedented oppression was targeting his body. The longer it took to complete the Inheritance, the more powerful the oppression would become.