Fudarakusan Daizen-in Temple

In 684, during the Hakuhō era, a temple complex consisting of seven halls and 300 monks' quarters was built in the area around Mt. Ontake in Nishino Village as a temple commissioned by Emperor Tenmu. However, due to war and other factors, the temple gradually fell into disrepair. A monk named Yōshun, who lamented this state of affairs, moved the principal image of the temple, the Eleven-Faced Kannon, to its current location, which he felt was more suitable for the Pure Land of Kannon.
During the Kōnin era, Kūkai, the founder of Shingon Buddhism, visited the temple during his travels and left behind a statue of Kūkai he had carved himself, along with sacred water. Around the statue of Kūkai, the oldest pilgrimage site in the Chita Peninsula for the “Four Sacred Lands” pilgrimage was established, allowing people to visit at any time.
In 1469, Mizuno Tadatsuna, the first lord of Tokoname Castle, wished for the safety of his domain and rebuilt six temples at Kannon-ji Temple on Mt. Potara, which was located at the demon gate of Tokoname Castle. He also built a new statue of the Eleven-faced Kannon Bodhisattva in the main temple, Daisen-in, and Kōkaku Hōin, the first abbot of the temple, entered the temple and laid the foundation for its revival.
In 1494, the deity Susanoo-no-Mikoto (also known as Gozu Tenno) was enshrined at the summit of the mountain from the Chiyo-no-mine Shrine in Tokoname. The ancient form of Shinto-Buddhist syncretism that existed until the Edo period is still preserved here, and in summer, the Okujo Tenno Festival is held, where people pass through a straw ring to ward off the summer heat.
Within the shrine grounds, there is the Fuyuka-an Kannon Hall, which was relocated from the former villa and studio of Japanese painter Hashimoto Kansetsu in Takarazuka, as well as the sacred tree Ibuki, designated as a prefectural natural monument with an estimated age of 600 years. The surrounding yabutsubaki (Japanese camellia) trees form one of the largest clusters in the prefecture.
The ceramic block walls, including the sacred fence and jewel fence of the inner shrine, are registered as part of the “Daisen-in Ceramic Building Materials Collection” in the Cultural Affairs Agency's National Museum of Modern Architecture Preservation Materials in 2013, making them a valuable Showa-era heritage site.