A shocking encounter on the subway when she was sixteen made Jiang Luoyi, who suffered from androphobia, deeply remember Yin Qi's face wearing a baseball cap in her heart. Then, like all green girls in love, she followed him to class and home every day. I hang around the dance club where he works every day, just to not miss any of his performances. After two years of not getting closer but not retreating, he was discovered by a talent scout and made his debut. She failed her parents and insisted on taking the exam in his city, traveling to every one of his performances and activities, getting to know each other privately by chance, and starting some kind of unknown "relationship"... A few years later, she suddenly woke up, sorted out her emotions, and planned to let go and return to her parents who had been heartbroken for a long time and live a plain and filial life. But would he be as willful and selfish as before and let her fly away?