University track athlete Chihiro is training hard for next month's big competition, but unexpectedly injures her leg. With her chance of participating in the tournament now in jeopardy, her coach, Miyamoto, offers her a special treatment—though it comes with an unexpected condition. Accepting the treatment will allow her to compete again, but the price she must pay is steep. What choice will she make? This is a heartbreaking story of a young athlete's struggle between her pride and the battle over her own body.