This is Eddie McDowd, a school bully who causes a lot of trouble and a drifter punish him and turn him into a dog. He must perform 100 good deeds in order to turn back to normal. https://www.youtube.com/watch?v=z3MZEDNBiUA
I have recovered my lost inspiration of the story. Hoping if I can more models of them.
Billy (c) Billy the Cat Eddie (c) 100 deeds for Eddie McDowd