The lock in Ai Changyuan's hand was an active magic device designed by Wang Qi.
Its material made use of spirit fruits containing powerful spiritual power.
Thanks to the continuous advancements in cultivation technology by the Immortal Alliance, Vermilion Fruits that would normally require sixty years to bear fruit could be cultivated in ten years, and they could be mass-produced at a very low cost. Wang Qi and Ai Changyuan simply purchased over ten varieties of spirit fruits, acquiring about three of each kind.
After purchasing the spirit fruits, they methodically used the Spirit Rhinoceros Bottle on hand to convert the fruits into magic artifacts resembling Golden Cores.
Each time "Golden Core Formation" occurred, a Golden Core Phenomenon resembling a defective product would be triggered. But what really made Golden Core Phenomena frequent was another one of Wang Qi's inventions.
A belt.
