Seirin High School is a new prestigious educational institution built for students with a higher grade average. It is also known for its exceptional basketball team… and their incredibly dumb ace, Kagami Taiga.
Because of his eagerness to become the best basketball player in Japan, Kagami has a hard time keeping his grades up. If he fails one more exam, the principal will have no choice but to kick him out of the school's basketball team until next year.