Keisuke Mineta, a first-year center for Yokohama Taiei High’s basketball team, battles to ascend from benchwarmer to starter. Standing 188 centimeters with sharp black eyes, his once-medium messy black hair gives way to a buzz cut, marking his transformation. Clad in jersey 29, his middle school legacy as Yokohama City West Middle’s star—propelling his team to district dominance—clashes with high school reality. Unrequited love for Akiyoshi, a girls’ team member devoted to rival center Kaname of Saijo High, fuels his drive after a crushing 32-point loss to Saijo. A promised rematch crumbles when Kaname abandons basketball, leaving Mineta’s rivalry suspended.

At Yokohama Taiei’s elite program, Mineta buckles under grueling drills, collapsing mid-practice. His idolization of ace Sei Shiraishi sours when Shiraishi coldly advises him to quit, triggering a temporary exit. Encounters with peers—Hyou Fuwa, who mocks effort in favor of innate skill, and Yozan Kamiki, whose tenacity defies his stature—erode Mineta’s confidence. Fleeing the gym in despair, he stumbles upon a pile of battered team sneakers, their frayed soles mirroring the relentless grind of his peers. This epiphany reignites his resolve: he shaves his head, returns to apologize, and recommits.

Though boasting above-average athleticism and grit, Mineta’s stamina lags. His journey pivots from clinging to past glory to embracing gradual growth, acknowledging that effort alone cannot close the gap with elites. Quotes trace his turmoil—contrasting middle school triumphs with high school trials—and his vow to conquer self-doubt through relentless perseverance.