These three Gold Devouring Bugs are precisely the three spirit insects that remained after the tens of thousands of mature Gold Devouring Beetles and the twelve candidate Bug Kings devoured each other.
At the time, under the threat of the True Heavensifting Mines during the Heavenly Tribulation, Han Li, in a moment of urgency, summoned forth all the Gold Devouring Bugs that were originally soaking in the Cleansing Spirit Pool water and undergoing evolution through consuming vast quantities of Spiritual Objects.
As a result, these Gold Devouring Bugs, after being struck by the True Heavensifting Mines and swallowing its power, unexpectedly started to attack and devour each other.
This surprised and delighted Han Li!
After he overcame the Heavenly Tribulation and advanced to the Mahayana stage, only these three candidate Bug Kings, or more accurately 'Half-step Bug Kings', remained from the entire swarm.
