Xu Ying is often bullied by Xile classmates, introverted and inarticulate. In life, she used her mobile phone to type and communicate with everyone. She hardly spoke and was isolated in the class.

But later, with the help of my good friend Chen Jing, my friends in 502 dormitory and music, I gradually opened my heart and grew into a better self step by step.

Plot:

Chen Jing is an eccentric girl, majoring in folk music dulcimer in the middle school attached to the Conservatory of Music. Because she likes piano, she decided to be a piano translator for her brother Wang Wen in the same school. However, because of her lack of western music knowledge and folk music background, she was snubbed by Wang Wen, which also caused friction between the two majors on campus.

In order to prove their ability, and also to prove that folk music can be on a stronger stage, Chen Jing and the girls in dormitory 502 joined hands to form a folk music band to play their own voice.

My cousin, Chen, is a teacher in the middle school attached to the Conservatory of Music. When the two majors were estranged, she helped students to resolve prejudice and misunderstanding, and silently gave Chen Jing encouragement and help.

Outside the school, Chen met the actor Feng Anyu by mistake. Chen's true attitude towards himself gave Feng Anyu the courage to re-examine his life and helped to form a band many times.

With the help of many teachers, such as Chen and others, students of western music and folk music have gradually grown up. They have broken their prejudices and lived in peace. Chen Jing finally proved the charm of folk music, boarded a bigger music stage and gained a beautiful youth.