Short answers, pulled from the story.
Men dressed as namahage wear ogre-like masks and traditional straw capes called mino to make rounds of homes in an annual ritual on the Oga Peninsula area of the Northeast region. These figures masquerade as kami looking to instill fear in children who are lazily idling around the fire.
Households with kamidana showed a decline from 62 percent in 1984 to 43.9 percent in 2006. Only 26.4 percent remain in metropolitan areas today.
Sazanami Iwaya lived between 1870 and 1933 and had a strong hand in establishing forms known today through his retelling of classic folktales such as Momotaro. He is often considered the Perrault of Japan.
The kitsune fox and tanuki raccoon dog appear frequently in humorous tales and are particularly known for their abilities to transform into humans or other beings. Animals like the tanuki could shapeshift into objects such as teapots in stories like Bunbuku Chagama.
This collection is now mostly housed in the National Museum of Ethnology in Suita, Osaka. Representative art includes ema wooden plaques with paintings of horses on which wishes are written.