In a bustling city, six young people with different backgrounds became connected through music. Yu Yu, He Nan, Liang Qi, Lin Sen, Zhao Pei and Shen Jiayao encountered the confusion of growing up, family entanglements, the test of friendship, the confusion of love and the pressure of artistic pursuit of dreams in their respective lives. For the sake of their ideals and themselves, they formed a "Heartstrings Orchestra", playing together and growing interactively in the ups and downs of urban life. The story is intertwined with multiple lines. Each character faces their own difficulties and heals each other through each other's companionship and the power of music, gradually achieving spiritual breakthroughs and sublimation. In the end, they used a vital music performance to bring hope and courage to each other and to millions of people in the city who have dreams.
