Park HaYun, also known as HaYun, is a twenty-three-year-old girl from Itaewon, Seoul, South Korea. She has a dream to become the first female Korean to win an international dance competition. She was qualified through an online dance contest, where she advanced to the finals. The competition is being held in Bangkok, Thailand, and she feels ready for it. While she's been working and focusing on her dancing, something surprising happens to her and the family. Will this surprise destroy her hard work, or will everything go to plan?