Luo Tianran (Yang Chaoyue) is a rookie musician with a playful personality and a strong self-esteem. Although she is tone-deaf, she dreams of becoming a composer. By chance, Luo Tianran meets idol superstar Jin Zeyi (Xu Weizhou), and the two of them live under the same roof. The two people with very different personalities start living together, and then a series of ridiculous romantic love stories unfold.