What is the plot and setting in the story The Aged Mother?

"The Aged Mother" is a Japanese folktale that revolves around a cruel law mandating that old people be put to death. The story is set in a rural village at a time when such a law threatens the life of the protagonist's aging mother. It follows a mother and her son as they escape the village and find a way to survive in the mountains while learning valuable life lessons along the way.