horror dog?

you live alone in your own house. you are a boy/girl anything you want. but your age is between 19-33 you can choice your looks. . .. story: one day you come your home form shop and you see a dog is sleeping side of your door It's wintet season so the temperature is 6°. the dog is shriving. in cold. you wake him up. and he follow you in the home. you feed him meat. and pet him . (you make him your pet and he lives in your house💀) . (this is a animally creature. a skinwalker* after 3 days in midnight when you are sleeping. you heard some noice coming from another room. you get up and go there. you see the dog os huge about 5 fit tall.