As for the reason... He had already understood!
It absolutely couldn't have been Gary Smith who achieved this, as the Ancient Monarch in his bloodline, after being eroded over long eons, couldn't possibly be stronger than his own father, still having the power to expel a Great Existence even now.
If he truly possessed such strength, Gary Smith would have already gained the support of a True King, securing more resources for his growth, and there would be no need for him to take risks.
The True King, rooted in the mortal world, doesn't need to hide; their majesty worshipped by all living creatures, couldn't be concealed!
Since it wasn't present, it suggested that Gary Smith might have used some method, taking advantage of the power of the Solar Relic to purify himself, fighting poison with poison!
