[Anime Crossover, Mainly Prince of Tennis] The Fox's Rebirth

After a plane crash, Niou Masaharu returns to his childhood and works hard alongside his Rikkai teammates. Please note: 1. There's very little romance, practically none. No dating while they're in school, just tennis, with maybe a touch of flirtation at most. 2. There are quite a few changes to canon. 3. The author is a Rikkai fan. Seigaku fans should enter with caution. I won't bash the Seigaku princes, but I do have my issues with Seigaku, and they may come through in the writing. 4. The characters' personalities reflect my own analysis of them, so they may be OOC.