Let me recommend you a few Doujinshi novels about the tennis prince. The light novel "The Net King: I became Frost Monarch's Monster Senior" was about a person who had transmigrated to the world of the tennis prince and obtained the support of the system, but his mission was very unreliable. In "The King of the Net: Ambilight, A Date with Fireflies," the female protagonist traveled to the world of the tennis prince. She did not know how to play tennis, but by learning three languages and becoming a top student, she found her own direction in this world. The story of "The King of the Internet: A Warm Life" was about a female protagonist who had been reborn and many wonderful things had happened. I hope you will like at least one of the novels, hehe ~.😗