This hall was reportedly built by Hiraizumi's second lord, Fujiwara no Motohira, and is also recorded in the 1189 accounting of Hiraizumi's temples in Azuma Kagami, the official history of the Kamakura Shogunate. The site where the Lecture Hall once stood is north of Oizumi ga Ike Pond, northwest of the Enryuji site, and northeast of Kashoji. It is nearly square, measuring 25m east-west and 24m north-south. More than a dozen foundation stones can be found on the earthen platform, and there is a slightly raised area just north of center that suggests a Buddhist altar. The pillars of this hall's front eaves are aligned almost perfectly with those of the the north side of Motsuji's main hall, Enryuji, pointing to a close connection between the two structures. It seems likely that the two were planned and constructed together.