Hello, according to the information you provided, I recommend a novel for you: " Female Supporting Character Wants to Usurp the Throne Every Day." The female lead of this romantic youth novel was called Bai Ruoning. The male lead did not reveal his name. The story was about the supporting actress, Bai Ruoning, who sacrificed herself for the female protagonist. However, after the appearance of a nameless man, she became his only female protagonist. She experienced many difficulties and revealed her identity. I hope you like my recommendation.😗