Shinōreijutsuin (精神的な芸術アカデミー, Spiritual Arts Academy), sometimes called the Shinigami Academy, is an institute founded by Genryūsai Shigekuni Yamamoto. Located in Seireitei, the academy trains future Shinigami for each of the three military arms of Soul Society.
The academy was founded some 2,100 years ago. It is not under the direct control of Central 46.
The Academy was once called the Shinigami Academy. It was then changed to the Spiritual Arts Academy when it developed into an institute for the next generation of the Kidō Corps and the Onmitsukidō as well as the Shinigami of the Gotei 13. Although, it is still referred to as Shinigami Academy in Rukongai.
The Academy is a sprawling, multiple story building with architecture typical of Seireitei. It has an open courtyard, many class rooms, dormitories and practice areas for Zanjutsu, Hakuda, Hohō, and Kidō. According to Aizen, the commandment all Shinigami are taught at the Academy is "Do not seek beauty in battle. Do not seek virtue in death. Do not make the mistake of considering only your own life. If you wish to protect that which you must protect... ...slice the enemy you must defeat from behind."