Please recommend a Doujin novel that meets the following criteria: The female lead is Chinese, and she is still Chinese after transmigrating, and she grows up in a warm family.

I am looking for the title of a Doujinshi novel. The requirements are as follows:
1. The female lead was Chinese. She was still Chinese after transmigrating and grew up in a warm family.
2. There was no limit to the male lead. There could only be two male supporting roles at most. However, Yukinari did not want a male supporting role. It was either the male lead or she did not like the female lead. (Alright, I admit that I was biased, but I really can't bear to see my goddess trapped in love.)
3. Don't be too lively.
4. I've seen The Prince of tennis
5. Requires BG to be normal
6. Good writing, not white lotus (not too kind), not Mary Sue (not omnipotent)

Answer 1

I recommend the book "The Net King: Protect My Prince." The female lead, Mu Yanqing, was a transmigrator who had returned to the world of the tennis prince and assumed the responsibility of the family to protect the happiness of the princes. She grew up in a warm family and even after transmigrating, she still maintained her Chinese identity. I hope you like my recommendation. Muah ~