As an extension of the Up series, 21 Up Japan follows thirteen children living in different parts of Japan by visiting them every seven years. In the third production of the "Up Japan" series they are asked to talk about their lives, families and future as on the previous two visits. Their circumstances are vastly different from each other. Some live in politically sensitive areas like Eri and Maki in Okinawa near a US military base, Sanae near the disputed Kuril Islands, while others like Yoshio and Mitsukatsu live with two different ancestral cultures in a strongly homogeneous country. Some still live with their parents, while others live independent of their family, by or not by choice.