Leon didn't plan to stay long in the imperial kingdom anyway, as he mainly needed a place to stay while looking for things to prepare for the [Eternal Battlefield] and also get stronger to get rid of his enemies once and for all when the time was right.
'Also need to focus on evolving Alphox, finding the [Hunter] and finally getting to the [Tower of Souls] before it's too late,' he thought, running through his mental checklist of things he needed to accomplish.
The [Hunter] as said many times before was an extremely powerful native who could roam across the domains to find a "worthy" player to test and potentially reward with something great.
You gained his favor by showing him the "trophies" of the bosses you defeated and then... who knows what happened after that, it was all a mystery that few players had ever unraveled.
Leon had met him once in [Higher Domain #54] and was rejected since he hadn't been worthy.
