The girl Du Youqing set out from her hometown in Beicheng, carrying her cello on her back, and came to Shanghai, the music education center of China, for further study. The father is a frustrated cellist. His love for the cello and cellist Yo-Yo Ma made him devote all his unfinished hopes to his daughter. Childhood friends Cong Luo and You Qing entered this school that carries their pain and joy side by side, and met the cello genius Li Mu. No matter in her studies or in her love life, Youqing has experienced changes that she could not expect. Two years later, the three friends moved from Shanghai to the other side of the ocean and started another life in the United States. On an American campus, Youqing and Lu Li met by chance. The original life pattern was broken again. In the thorns of reality, Youqing began to re-choose her own love rules and life direction. Youqing is in a dilemma about her choice. She doesn't know whether she is continuing to move forward on the road to realizing her dream, or whether she is actually getting further and further away from her dream. Is the love and friendship that is always around me a warm combination, or an emotional fetter that makes life more complicated and helpless? And is the trust of the previous generation a lamentable and irreplaceable family bond, or is it an unbearable weight in life? In the end, are their fates in their own hands, or are they left to their own devices? All the answers may only be found through the ups and downs of life. The price paid is also unpredictable.