They were replacing each component before installing the new parts.
Few people in the world knew that Mr. and Mrs. Yue, who had disappeared from the Central Plains for several months, were hiding here, crafting various objects for Li Xuan.
The throne of "Emperor Xuanhuang" was the work of their hands.
Although the throne was not a magical instrument, its interior was incredibly precise and complex, beyond the capabilities of ordinary Artifact Refiners.
Only Mr. and Mrs. Yue could accomplish such a feat, with their Artifact Refining Technique being at the pinnacle and their cultivation nearing the False Heavenly Position, combined with their harmonious understanding.
"How is it going?" Li Xuan looked down to see the dense, intricately assembled devices inside the huge egg, along with the spherical coil in the center, covered in runes and shining brightly.
"Progress is satisfactory."