Slam Dunk was a Japanese manga and cartoon that told the story of a high school basketball player, Takahiko Inoue, and his friends growing up in a basketball game. The National Competition was an important plot of Slam Dunk. In the competition, basketball masters from seven cities gathered together to compete for the national championship. Since Slam Dunk was an animated film, the scenes of the national competition usually took place in the fictional animated world. If you want to find the scenes of the National League, you can watch the cartoon or search for related animation resources.