Pyralsartine is normally a fairly cheerful individual, though his appearance might suggest otherwise. Playful, if a bit rough, he's more known for tearing through the forest or dashing across the plains than anything of practical benefit.
While he is not an idiot, he doesn't quite get the more complicated things very easily, and ultimately prefers to leave such things to those who are better suited for such. Loyal and somewhat protective, the friendships he forms are hard to break, but special circumstances aside, when they do break they are broken forever. He does not trust again once you've broken it, with very, very few exceptions.