Although Nanako had just attained enlightenment, she had already realized a critical problem: the Reiki available to her was very little, and there was almost no external channel for obtaining Reiki.

For cultivators today, getting Reiki was the most difficult thing. There was no Reiki in the world, so the only external channels to obtain Reiki were elixirs, spiritual stones, or formations.

If someone had a complete cultivation method, he could generate Reiki in his body by practicing the met