With his experience cultivating the Celestial Might Star Bone, Bai Zichen already had a firm grasp of the methods for the seven Immortal Bones of the Nine Heavens Bone Forging Techniques.
This set of Body Refining Techniques had extremely high entry requirements, not just in terms of one's Cultivation Realm, but also a host of other bizarre demands.
The actual process of refining an Immortal Bone was quite fast, with the transformation taking only a few months to complete.
The Sun Element Copper Bone was refined into the skull, a location of utmost importance. Following the cultivation method of the Nine Heavens Bone Forging Techniques, he melted down the Spiritual Materials one by one and refined them into his body.
He could clearly feel the temperature at the spot between his eyebrows rising rapidly.
