Sadly, the "local specimen" didn't appear in the next volume 5 of the novel if not mistaken. The author really like to do some world building foreshadowing some character that will reappear again in the main story of the light novel.
I would like to read the story further just to know what will happen. Although, the story does feel kinda a bit lack luster in the beginning. Maybe writer wants to save some surprise for future story telling. Thanks SilasMeanQuite for translating this