After overcoming Black Shaft's ad hoc Team America, the Golden Japan Jr. squad heads back to practice for the World Tournament slated in Tokyo. Yet while training, the Shadow Clan—who employ boxing as a lethal tactic—seizes Kiku to bait Ryuji and teammates into combat, in the intense rivalry of the nation's fiercest, aiming to determine the finest representatives among Japan's junior pugilists.
Toei Animation Japan