"A magic core filled with Dou Qi could sustain a concentration of natural energy like this for about half a year."
Watching the Dou Qi drain from the magic core, Xiao Yu murmured to himself.
Although his cultivation had already become much faster, Xiao Yu could still sense that his body's ability to absorb and refine energy was nowhere near its limit.
He no longer worried that advancing too quickly would leave his foundations unstable. Ever since obtaining Five Qi Thunder, he had been eager to increase his speed of advancement.
So, if possible, he wanted to push his cultivation speed to its limit!
To do that, he needed to increase the output of the Desolate Child Flame, and the way to increase its output was to strengthen this little wisp of source child flame.
Without dwelling on it, Xiao Yu separated out another wisp of Desolate Child Flame and merged it into the child flame above the magic core.
With another wisp of source flame merging into it, the child flame instantly grew considerably larger, its silver-red glow becoming even more brilliant. The surrounding natural energy surged once more, returning to its original mistlike concentration.
Xiao Yu was very satisfied, but the Dou Qi inside the magic core was also being consumed much faster. By his estimate, the time it could last had dropped from half a year to roughly a month.
Still, Xiao Yu considered that a trivial matter. As long as he could fully realize his cultivation speed, he was more than willing to recharge the magic core once a month.
With that done, Xiao Yu resumed cultivating. Pushing his body's ability to absorb and refine natural energy almost to its utmost limit felt truly exhilarating.
It was not that he did not want to go even