Japan is an island country in East Asia. It has the second-largest population (after the People's Republic of China) in East Asia and the second-largest economy (after the United States of America) in the world.

Nicole Kirby's father was stationed in the military base at Okinawa, Japan. She thus lived in Japan as a child and learned to speak Japanese. ("The Gift")

Keiko Arahida lived in Tokyo, Japan. ("Believe")