774 Hu Yaoyao's Invitation

Origin Heavy Water costs ten high-tier spirit stones per bottle. I need ten bottles to cultivate the Third Incandescence of Quintuple Incandescence Golden Body, so in other words, I require a hundred high-tier spirit stones!

Considering that I have expended four spirit stones cultivating from Cosmos Bridge realm pinnacle to Perfect Harmonization realm advanced stage, in order to reach pinnacle, I will need two high-tier spirit stones or perhaps even more. Beyond that, Ethereal Treading realm, Chrysalis realm, Half-Saint… The number of high-tier spirit stones will only increase exponentially. Without at least a hundred high-tier spirit stones, I won't be able to go far…

Zhang Xuan's head began aching.

It seemed like his wish of reaching Saint realm within ten days was nothing more than a pipe dream at this point.

Putting everything aside, just the lack of spirit stones was already a huge problem in itself.