I think the novel that fits the description is Return of the Reborn Movie Queen! It was about the female lead, Qiao Jing, who had invested in and starred in an unpopular web drama. She then revealed that she had a boyfriend in the industry. This boyfriend was the double best actor, Gu Yiran, the head of the Gu family. She was once killed and reborn seven years ago. She came to the entertainment industry to seek revenge and changed her fate in her previous life. The boyfriend's name was not Zhao Cheng, but the female lead's sister's name was Yang Mengshan. I hope you will like this novel!