Shiro: A Dog's Tail

I'm planning to do my old story idea Shiro: A Dog's Tail, based on the old Japanese folk story 'Old Man Flower'. In my adaption of the story, set in a fantastical world unlike our own, Shiro lives with his mother as part of a wolf pack, and lives a grateful life there. When his mother is shot by hunters, he is exiled from his once-beloved wolf family and finds himself at the home of a kindly old couple and their son.