Kazana found Brutus, he was an older pup who had learned to fend for himself, he was very wary of others and a bit aggressive but once he saw the love and care Kazana was willing to give him he slowly opened up to her and she discovered that Brutus had been abused in his previous pack and ran away learning to fend for himself from a very young age.
As Brutus got older he found himself getting close with Onyx as they shared similar traumas as children, and they eventually fell in love.