Once upon a time, "Seven Notes" was a little-known underground band, an ordinary two-man and one-woman group. He, Xia Liangjiang, a talented singer, is not satisfied with the status quo, and strives to become a dazzling star, hoping that more people will recognize his strength; she, Su Ye, a keyboard player with great musical talent, just hopes to live happily in her own small circle and be an ordinary person. Different pursuits led them to different paths, and her position was replaced by her best friend. "Su Ye, if you leave today, there will be no place for you here. I will take your place and stand by A Liang's side."... She thought her life would be peaceful in the future, but she didn't expect that the return of "Seven Notes" and the emergence of Rong Ancheng would make her life constantly face turbulent waves.