Watching his wife and senior sister return to the room, Xu Lai retracted his Divine Sense. He was indeed afraid Ruan Tang might feel lonely, but he was even more concerned that she might overthink things. The Magical Treasures and formations being refined in the Refinement Workshop required immense mental focus, and there could be no mistakes whatsoever.
Artifact Refining is classified into ten grades. The first four grades are Mortal Instrument, Treasure Instrument, Heavenly Instrument, and Spiritual Artifact, respectively. Starting from the fourth-grade Spiritual Artifact, spirit infusion is required. Although this 'spirit' is rudimentary compared to the spirits within ninth-grade Immortal Artifacts and tenth-grade Quasi-Emperor Artifacts, owning a Spiritual Artifact is still an extreme luxury for a Golden Core Realm Cultivator in the Immortal Domain.
