Osaka is Japan's third-largest city and a major commercial and industrial hub, with a population of over 19 million people in the greater Osaka area.

Naruto, created by Masashi Kishimoto in 1999, is a popular manga and anime series that follows the adventures of a young ninja as he strives to become the strongest ninja in his village.

The Tokyo Marathon, first held in 2007, has become one of the most popular marathons in the world, with over 30,000 runners participating each year.