Bramble Fox is Shawnee, Cheyenne and Dakota Fox's horse, and lives with them in Appaloosa Plains, along with Willow and Shep. Bramble is best friends with Cheyenne and Shawnee; friends with Shep, Hailey Shepherd, Willow and Dakota. Bramble is 11 days away from aging up. According to Bramble's biography, the Fox family surely likes her even though she is rude, though she knows what role she has in the ranch and strictly performs it.
Mistakenly, Bramble's bio refers to her as "he" throughout, though she is actually female. Willow's bio implies that she and Bramble are daughter and mother, but they are unrelated in the game itself.