A very cute little golden retriever dog. She is wearing a white shirt

A very cute little golden retriever dog. She is wearing a white shirt, a green plaid sweater, a brown skirt with a belt with a buckle. She is covered in blood and holding a shotgun, killing several demons. Next to her, there is a man wearing a futuristic costume with unicorns. He is also holding a shotgun and shooting at the demons. The image has to be in anime.