Wikipedia - J3 League

J3 League (Japanese: J3リーグ, Hepburn: J3 Rīgu) or simply J3 is the third division of Japan Professional Football League (日本プロサッカーリーグ, Nihon Puro Sakkā Rīgu). It was established in 2013 as the third-tier professional association football league in Japan under the organization of J.League. The league is known as the Meiji Yasuda J3 League (Japanese: 明治安田J3リーグ) for sponsorship reasons.

The third-tier nationwide league is a relatively recent development in Japanese football with a first attempt made in 1992 (second division of the old JFL), though it only lasted for two seasons. In 1999, following the establishment of J2 League, a new Japan Football League was created to comprise the third tier and lower divisions. After the introduction of J3, the JFL was demoted to the fourth-tier nationwide league, for the first time in history of Japanese football.

The Japan J3-League is the third tier of professional soccer in Japan, serving as a vital platform for emerging talent and competitive club football. Established to foster the development of promising players and clubs, the league features a dynamic and competitive environment with teams from across the country vying for promotion to higher divisions. Matches are characterized by energetic gameplay, strategic tactics, and passionate fan support, making the J3-League an exciting showcase of Japan's growing football talent. The league operates under the Japan Football League system, with promotion and relegation mechanisms that keep the competition intense and engaging throughout the season.