Teikou Middle School reigns supreme in basketball with the legendary 'Generation of Miracles' leading the charge for three years. This fabled team's success was not just due to the five prodigies but also a mysterious 'Phantom Sixth Man' shrouded in secrecy. As they outgrew their love for the game, the Generation of Miracles dispersed in high school. Seirin High School, in need of fresh talent, enlists the contrasting duo of Taiga Kagami and Tetsuya Kuroko. Kagami, recently back from the U.S., boasts natural skill and passion, while Kuroko, the unnoticed player, surprises as the elusive sixth man from Teikou. Eager to showcase his unique strength, Kuroko teams up with Kagami, pledging to support his brilliance as his shadow. Together with Seirin's squad, they set their sights on the Interhigh championship. However, the sudden return of Kuroko's former teammates threatens to challenge their quest for victory.