With 15 seconds left and Riverside trailing, the coach orders Marcus — a benchwarmer often mocked as the team's 'water boy' — to replace starting shooting guard Zane. Fans roar insults and demand refunds, convinced the team has conceded and ridiculing Marcus. Teammates warn him not to embarrass himself; a loss would cost Riverside a playoff spot. Marcus admits a past injury but reveals he awakened the Basketball God System and just completed 1,000 shots. He steps onto the court determined to flip the score in 15 seconds; the team's fate now hinges on his next plays.