He is the pack playboy. He came from an unknown family from unknown regions. As much as he likes to tell stories he refuses to talk about the stories of where he came from. He is the second in command of the Frost Walkers.
Even though he has 58 pups, he doesn't talk to any of them and is just a terrible father. The only one he has a grain of pride for is Rex, and its only because of him being the largest and strongest of his litter. He completely ignores his first litter, the one he had with his mate Pruina. Only Heaven knows why they're together.
Unfortunately after Pruina's death things changed. His playboy mannerisms ceased and his personality changed. Sunrise who was once a player was now somber and quiet, keeping to himself among his pack mates. It's thought that maybe he did truly love her, but he never got to really tell her.
