The encounter between Piro and Supremacy Oville was actually very simple.
Thirteen years ago, Piro was only a fifth-stage Internal Breath Martial Artist. At that time, he had tempered himself outside in order to break through the Cosmic Heaven's Gate.
However, in the battle with the ferocious beast again, he was heavily injured because he was no match for it.
Just as he was about to die, he happened to encounter Supremacy Oville passing by.
After healing him, Supremacy Oville left without leaving any information.
The reason why Piro knew that it was Supremacy Oville from the Earth Federation who healed him was because he had heard some other information later on.
