Founded over 2000 years ago by the current Soutaichou Yamamoto Genryuusai Shigekuni, the Shin'ou Reijutsu Academy is the prime place of learning for future members of Gotei 13, Onmitsukidou and Kidoushuu. The building housing the Academy is vast and easily one of the most impressive in Seireitei. It's the place where the young shinigami learn to fire their first Kidou, swing the asauchi and some of them even release their zanpakutou. Considering how much poorly-controlled power these old walls had to withstand, it's a wonder the structure is still standing.