The heroine has a dual personality: the daytime persona "Lin Zhiyao" is socially anxious and tone-deaf, and is a "waste vase" that the company stuffs into variety shows; the nighttime persona "Diva" is confident and a stage queen, and is a top streamer of masked live broadcasts with millions of fans. The two personalities are unaware of each other's existence, share the same body, and write each other's future while switching between day and night. When she was forced to sing the new song she wrote at night in front of the actor during the day, the boundaries of her dual identity were torn apart. Everyone was asking "who are you?" And the male protagonist was the only one who fell in love with these two "different hers" at the same time.