In this mountain range of where their village was placed somewhere in the middle, many beasts could be found. But in all those beasts, three of them were considered the strongest and those three had their own territory.
One of the three strongest beasts was naturally his first tamed beast, Bantay! Though Bantay was the strongest among the three in the past and the sole ruler across the land, when he was injured by his current master five years ago, his strength went down to the point that he was now the weakest among the current three strongest beasts.
His territory was also the smallest among the three and his only subordinates were the Tree-Merger Apes who remained loyal to him after his downfall.
Jim of course knew about the existence of these three but Jim only met Bantay before, the Gorilla King. About the other two strongest beasts, Jim really had no idea where they were. All he knew was that they were a strong A-rank beast.