orologio en CB01 OFFICIAL. Young-Joo (Park Yoo-Na) is a member of the national female curling team. She begins to experience ringing in her ears and this causes her to become a substitute player. Young-Joo travels back to her hometown. There, she meets Sung-Chan (Kim Min-Suk). Young-Joo had a crush on him in the past. Sung-Chan is a former member of the national male curling team. They become partners in mixed doubles curling.