According to the information provided, I can recommend the following two novels with the male protagonist being Tezuka or Ryuuma: 1. "The Star of the King of the Net, Noyuko": The female protagonist accidentally transmigrated to the world of the tennis prince and fought side by side with the young students to reach the peak of tennis. The male leads included the tsundere Echizen Ryuuma, Iceberg Tezuka Kunihiro, and others. 2. "The King of the Net's Guide to Wearing a Male God": The female protagonist traveled to the world of the tennis prince, fell in love with Ryuuma Echizen, and was a childhood friend of Kajimoto. She became the sister of Atobe Keigo, etc. The main male protagonist was Ryuuma Echizen, and there were other male gods. I hope you like this fairy's recommendation. Muah ~😗