A Rinzai Zen temple Reichinzan Daishoin, which had long been deserted, was restored in 1656 by the 2nd lord of the Choshu domain Mori Tsunahiro as the mausoleum of his father, Hidenari. After the fire in 1747, the present main hall, kuri (the priest’s quarters) and the bell tower were reconstructed by the 6th lord in 1750. Especially, the priest’s quarter is large and stately enough to be the family temple of the domain lords.

The main hall, Shoin (the priest’s private quarters), the bell tower, the sutra repository and the wooden and standing statue of Akadoji (Red Youth) are nationally designated Important Cultural Properties. Visitors can have the honor of seeing the statue of Akadoji housed in Shoin hall from the garden. The wooden and sitting statue of Priest Gio, the founder of this temple, is a prefecturally designated Tangible Cultural Property.

Over 600 stone lanterns that were dedicated by senior retainers stand in front of the graveyard of the lord and his wife. In early May, wisteria trees in the precinct come into bloom. On August 13 every year, Mantoe (the lantern festival) is held at the two family temples of the Mori clan, Daishoin Temple and Tokoji Temple. The illuminated stone lanterns create a mysterious atmosphere.