In a little high school in South Korea, the star player of the soccer team is acting as a temporary student coach in the absence of their real coach.  Choi Minho takes this golden opportunity to strengthen one of the players he's had his eye on.  Lee Taemin is the team's weak link, and the coach would have kicked him off the team, if it weren't for Minho begging him not to.  Minho sees immense potential in the boy, and the coach trusts his judgment.

But Minho's judgment fails him when he takes his training of the boy too far.  His intentions may be pure, but Minho doesn't realize how harsh his methods are until he sees Taemin break down completely.  His world comes crashing down at the sight as he realizes just what he's done.

He wants to comfort the boy and heal his wounds, but can he really do that when it was he himself who inflicted them?