An ancient temple in Numama, Zushi, renowned for its bronze bell bearing an inscription from Oei 10 (1403), a precious cultural property that preserves early Muromachi-period casting techniques. With over 600 years of history as a center of faith in the Numama area, it plays a vital role in conducting local memorial services and annual ceremonies.

The exact founding date of Kaihoin Temple remains unknown, but it is said to have been established as a place of worship in the Numama area of Zushi, a region with deep Buddhist roots dating back to the Kamakura period (1185–1333). The most significant artifact attesting to the temple's history is a…