This is the last of a five-part series on Japan's population woes caused by its graying society and low birthrate.

A shrinking population has long been an issue for an increasingly graying Japan.

Prime Minister Shinzo Abe in September announced administrative measures seeking to maintain a population of at least 100 million people over the next 50 years with a target of significantly raising the fertility rate to 1.8 — a figure the government says is reachable if people today marry and have as many children as they wish.