Choi Sulli, she's the princess of Korea. She has two sibling, She has to take over the kingdom even if she's the youngest. Her grandparents made a promise that she would marry their friend's son when she turns18. Her parents decided to keep that promise and meet up with the parents. Choi Minho, the prince of the other half of Korea, throws a ball at the castle. He invites everybody of royalty, including Sulli. They dance during the slowdance, looking into eachother's eyes, that was untill the clock struck 12. Sulli left, and Minho ran after her. But she left one thing there, her bracelet. This is another cinderella story.