I want to know the superstition that black dogs and black cats are good or bad.

There is an ancient saying that dogs are loyal and cats are treacherous. Legend. Cats have been nine secluded things since ancient times. Cats are yin, and evil spirits are extremely heavy. Black cats, especially from this.

Black dog. Jiro, sit down, asthmatic dog. It is a black dog and has the power to subdue evil spirits. See through, grumpy and evil. Ghosts see it and avoid it. So black dogs can ward off evil spirits.