Anime Crossover: Am I Really Only in the World of The Prince of Tennis?

(Crossover + mainly Prince of Tennis + Kuroko's Basketball + a little Ouran High School Host Club 1. There probably won't be many matches from the original plot in this story, and the author may add original matches. 2. The heroine knows the Prince of Tennis plot, but not Kuroko's Basketball or Ouran High School Host Club. She thinks she has transmigrated into the Prince of Tennis world alone. 3. The heroine is two years older than Tezuka and Fuji, one year younger than Byodoin and Irie, one year older than the Generation of Miracles, and in the same year as Haruhi. 4. The author wants to write a story with a heroine everyone loves! Just think of it as an otome game. 5. The heroine seems knowledgeable and elegant on the surface, but is actually a carefree goofball with a naturally adorable side. 6. It will most likely be an all-characters romance, though there may be separate routes. There will definitely be romantic tension! 7. The heroine may be a bit of a Mary Sue, but not too much. She's quite good at tennis. 8. The characters' values in the story don't represent the author's. 9. Don't get hung up on Sino-Japanese relations in the anime. You can imagine that, in the author's version, Japan is a vassal state of China.) After transmigrating, Haruna discovers that she's landed in her favorite world, Prince of Tennis! The good news: Tezuka is her cousin, so she can get up close to the princes and watch the story unfold! The bad news: Tezuka has already suffered his injury, and despite being a tennis ace herself, she attends a school nobody's ever heard of for tennis! Wait, something's off about basketball in this world too! What's this “Zone” thing? Did she not transmigrate into the Prince of Tennis world alone after all? Dame~ Don't mess with her head! Give her a break~ (╥_╥)