Peter Pan should have been among the first batch of Spiritual Energy Users to be born, unexpectedly.
In that era, when fear of Mages was still prevalent and people hadn't completely forgotten the existence of Mages, obtaining abilities that clearly didn't belong to "the power of the Holy Order" was certainly not a good thing.
"But unlike real children… he had no family. No parents to restrain him. With the wisdom and Awakened Spiritual Energy Peter Pan had accumulated, he quickly became the king of the children in the surrounding area.