To Joo-young, Korea’s first Olympic gold medalist in women’s curling and the skip (captain) of the team, the Olympic medal was everything. She quits curling with a sense of responsibility and guilt after her teammate’s suicide. Living as a high school curling teacher, she accidentally meets Hyuk-soo, the coach related to her teammate’s suicide. After the encounter, Joo-young can’t stand Hyuk-soo anymore as he even threatens her students. She decides to disclose who he really is and starts a new plan with a helper…