The Psidai (or Psydai, it doesn't matter how it's spelled) Universe is based primarily on the Prince of Tennis anime, with a few elements of the manga (by Konomi-sensi, to whom the entire franchise belongs to *coughdisclaimercough*). Our spin on it, however, was inspired by reading too much Psychic Academy manga, and maybe also a bit of Alice Gakuen. The PoT characters are only different from canon (or perhaps fanon) in that they each have some kind of supernatural powers. These powers aren't meant to be powerful or even useful half the time, nor an excuse to angst or for a dark government conspiracy type story. They're mainly there for comedic purposes only.
Aside from that, we also assume that all the main schools and major characters are going up their respective elevator school systems. So the same cast will still be with us in high school. After high school, all the psionics/psychics/major characters will be attending a special university for psi's - ie. Psidai/Psydai (short for Psychic Daigakuen of Psionics). So yes, practically all of PoT will eventually be squished together into the same school by our plot device. *insert evil laughter*
If you're new to this series/universe, it's suggested that you at least browse through the character sheets on the website (at least for Seigaku and Hyotei) to at least get an idea of the changes we've made to the characters from the canon universe.
* All fics are rated G unless otherwise indicated.
* All fics involve shounen-ai/yaoi/slash.
* Basic knowledge of Prince of Tennis is recommended, but not required. Offical character bios in current anime/manga continuity can be found here.
* J-3 is the school year when the "current" continuity in the anime/manga takes place. Ie. with Tezuka, Inui, Shishido, etc. in their 3rd year of junior high. H-2 is when they're in the 2nd year of high school, and U-1 is in their 1st year of university, and so on. Info on the Japanese school system is here. A more detailed outline of the schoolyear can be found here.
* Fics whose placement in the timeline has not been determined yet won't be listed on the Timeline section until they are.
Concurrent with the anime/manga: InuKai series / Scientific Method mini-arc (see section above) Senbatsu Doubles Rewrite - During the Senbatsu selection Hypothesis - (InuKai Series) Post-Senbatsu, pre-nationals Observation - (InuKai Series) Post-Senbatsu, pre-nationals Analysis - (InuKai Series) A litle before the nationals
During the Nationals: Never Learn - (D1 Trilogy) At the national semifinals between Hyotei & Rikkai, Doubles 1 match And the Children Shall Lead (Pt.2) - [Rated PG] At the national semifinals between Hyotei & Rikkai, Singles 1 match Doubles Disasters - (D1 Trilogy) At the national finals between Seigaku & Hyotei, from S3 to D1