I'm not able to post complete profiles for the charas becaue it will ruin the rest of my story, but I can tell you most of what you need to know about them.
Jake: Male squirrel.
Description: He has a great sense of humor (usually isn't destructive), Impulsive and grins a lot. He's slightly taller than medium height, has nutty brown fur (double-pun not intended), and has a good amount of muscle(not so much as to make him look fat or disfigured though).
Strengths: He is a tracker and a trickster. He has a great sense of humor, he is also a great swordsbeast and he can always forage for his own food if he needs to.
Weaknesses: Just like Rosen he is impulsive, but keeps it to a minimum level, he is also bad at archery, knife throwing and navigating. Don't let him into the kitchen either, he is a bad cook, but can eat a lot of food.
History: Lives at Castle Floret. Was trained as a guard at age 15 and was trained as a tracker when he was 17, eventually he was made a secondairy captain of the castle guard. He lived there several years and trained Rosen when she asked for it. She got a lot of cuts and bruises and turned out to be more ambitious than him in learning. He is still better than her at swordplay, but not by much. He learned of her ambition when he discovered that Murva had trained her to throw knives and be an archer. He was yet again surprised when Belmar mentioned that Flora had taught her to cook.