The story takes place in high school and entering society, meeting again after a long separation, and the prodigal son turning back. Her mother died when she was young, and her father raised her. She went to work to earn money whenever she had time. There was also a twin sister at home. She was very beautiful and tall, with long hair. She learned the violin when her mother was still alive. After high school, she became famous for her New Year's Day performance. When she grew up, she went abroad and came back to work as a violin teacher. He is a playboy, and he has captured the hearts of many girls with his arrogant face. He has a unique aura that attracts girls. No matter how cold his face is, girls will fall in love with him. He smoked, had a background, and was at odds with his family. When he grew up, he became a police officer, a more dangerous profession. The heroine's secret love, the hero's attraction, the purity of high school, the secrets no one knows in a girl's heart, and the true definition of love in a boy's heart.
Concept: The secret that no one knows in a girl's heart, the true definition of love in a boy's heart.