The Japan Professional Football League, also known as the J.League, was founded in 1992 and has become one of the most successful professional soccer leagues in Asia.

The Japanese crested ibis, also known as the "toki," is a critically endangered bird that is native to Japan and is considered a symbol of good luck.

Tokyo is the capital of Japan and the largest city in the world by population, with over 37 million people in the greater Tokyo area.