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I'm not sure if there are a billion, but the Relay Spirit is desperately vomiting them out. It has vomited for an entire day and has only produced slightly over ten thousand. If there really were a billion Soul Crystals, it would need to vomit for ten thousand days, which would take decades to finish.
"It must be due to the transfer of Soul Energy. Its connection with the Soul Network allows for only so much to be transferred in a day. If we want to speed up the process, we would need to create a few more Relay Spirits," Durken analyzed.
However, creating Relay Spirits is no easy task. These special Spiritual Bodies lack intelligence but their Soul Strength is incredibly high, rivaling even that of Feiti, the Lord of Mourning. If it knew how to use its own Soul Energy, it would become a very formidable Undead Spiritual Body.
