The Ainu are an indigenous Japanese people. This collection of tales aimed at academics hasn't got any illustrations, so I've added one from a Dover clip art collection.
Aino Folk-tales by Basil Hall Chamberlain
The story I would like to feature is The Man who was changed into a Fox on page 25. Foxes appear frequently in Japanese folklore. They generally disguise themselves as women, or possess the souls of women, so that makes this story an interesting exception.