The room on the southeast corner was called the Osenmikocha and was where the king and ladies of the court offered prayers every morning toward the eastern direction. In the Otoko was a Shinto shrine where the ladies of the court burnt incense and offered prayers to the Hinukan fire god, and others. This was also where appointment ceremonies for high-ranking priestesses took place with the king and queen in attendance.
Destroyed by the fire in October 2019.