Joo Sae Rin, or known as Rin by her friends and family, is the most gorgeous, stunning young girl in her high school. But she's too quiet, shy, naive-looking. She never really got over the various trauma about boys abusing her physically and emotionally in preschool ---the boys wanted to make themselves known to her but still wanted to hide their feelings. After her parents heard about the abuse, her father and herself moved to America where her father was originally a FBI agent. However, her happiness only lasted for a couple of months, she was close to being by an old man, and from that day on, she learned to close herself from the world. Of course, her father did anything to help her overcome her fear of men and boys. He taught her various types of martial arts, and she went to guitar and piano lessons to help her express herself.