Master Xuan Qing and the others' space rings are just ordinary ones, only used for storing mundane items; they can't store living beings, let alone treasures from the Immortal Realm.
To store Heavenly Spirit Stones requires a more high-level Storage Ring, and it's not enough just to know Artifact Refining; corresponding materials must be found.
However, these materials are extremely rare, and refining them is far from easy.
Moreover, the method to refine a space ring is harder than finding materials. In the Cultivation World, there's simply no one capable of refining a space ring that can store Heavenly Spirit Stones.
Carrying by hand, shouldering on the shoulders—in whatever way, how much could these Independent Immortals and Independent Demons lift?
