Actually, Su Zhou didn't know if they were truly souls, but he would call them that for now. After all, the name had to go with the "Evil Souls" from before.
In any case, Su Zhou believed this was highly feasible. If successful, it would undoubtedly enhance the versatility of the Evil-Devouring Demon Lord. It would also allow him to completely master his Divine Technique and mold the Evil-Devouring Demon Lord into his own image.
"Captain Su, hello. The Classics you requested have been sent over via the Teleportation Array. Specialized personnel have delivered them to your office. However, the Artificial Gemstones still need some time to be made. They also need to be placed in a Spirit Vein for artificial Spiritual Energy sedimentation, which might take a few days."
