With plenty of Dou Qi recovery pills stockpiled, Xiao Yu took little time to replenish his Dou Qi-just a quarter of an hour.
How could it possibly be slow when he was popping pills like mad?
Once his Dou Qi was replenished, Xiao Yu began guiding the dazzling thunder in his Dantian, separating a portion of its essence.
Only after a tremendous effort did he extract a tiny thunder seed from the eternal sun divine thunder, and he had already used up a considerable amount of his newly replenished Dou Qi.
He was now preparing to cultivate the eternal undying body, because he wanted to see whether his current body could withstand tempering by the great sun divine thunder.
The cultivation method for the eternal undying body stated that cultivating it required a sufficiently strong physical body. Otherwise, one simply could not withstand the divine thunder's tempering.
Xiao Yu did not know whether his current body was up to the task. If it was, everything would be easy. If not, he would have to find a way to strengthen it further.
That was also why he had set his sights on the fallen heart flame.
At present, the only substance he knew could temper the body was the fallen heart flame's origin heart flame. This time, he intended not only to help Xiao Yan successfully subdue the heavenly flame, but also to seize the opportunity to obtain some origin heart flame against a future need.
Under Xiao Yu's guidance, the separated great sun thunder seed rushed out of his Dantian and headed straight for his spine!
The first step of the eternal undying body's initial tempering was the spine.
The thunder, blazing with an eternal radiance, emitted a light too brilliant to look at directly. An aura of destruction, antiquity,