Kandani Shrine (神谷神社)

Kandani Shrine’s main hall is the oldest surviving shrine building in Kagawa Prefecture, constructed in 1219 during the Kamakura period, and designated a National Treasure in 1955. The structure exemplifies the kasuga-zukuri architectural style — a peaked-roof design with curved gables — and stands as one of only three National Treasure shrine buildings in all of Shikoku. What makes this shrine remarkable is not just its age but its preservation: the hinoki cypress beams and intricate bracket systems remain largely original, having survived eight centuries of typhoons, earthquakes, and the transformations of history around it.

Kandani Shrine was established in the early Heian period, though the exact founding date is uncertain. Local records suggest the shrine existed by the 9th century as a place of worship for the agricultural communities in the Mitoyo region. The current main hall was rebuilt in 1219 under the patronage of local samurai lords during the Kamakura period, a time when shrine architecture across Japan was being formalized and refined. The shrine served as the spiritual center for the surrounding villages, and its longevity reflects the continuous devotion of generations who maintained and protected the building through periods of civil war and modernization. It was recognized as a National Treasure in 1955, cementing its status as an irreplaceable artifact of medieval Japanese religious architecture.

Ajisukitakahikone no Mikoto (味耜高彦根命) is the primary deity enshrined at Kandani. He is the son of Ōkuninushi, the great earth deity, and is venerated as a god of agriculture, particularly rice cultivation and harvest. Ajisukitakahikone appears in both the Kojiki and Nihon Shoki, where he is described as a kami of such striking appearance that he was once mistaken for his deceased brother, causing great mourning to turn to joy. His association with agricultural prosperity made him an essential deity for farming communities in Shikoku, where rice paddies shaped the landscape and economy for centuries.

The most famous legend associated with Ajisukitakahikone is the story of mistaken identity following the death of his brother, Ame-no-Wakahiko. When Ame-no-Wakahiko died, the heavenly gods sent Ajisukitakahikone to pay respects at the funeral. His appearance was so similar to his deceased brother that the grieving family mistook him for the dead returned to life. Furious at being confused with a corpse, Ajisukitakahikone drew his sword and destroyed the funeral hall, kicking it into the sky where it became a mountain. This rage, though shocking, was understood as righteous — a declaration of his own vitality and life force, which later became associated with the vigor of crops rising from the earth.

The main hall (honden) is a compact kasuga-zukuri structure, measuring just three bays wide, with a distinctive raised floor and steeply pitched roof. The cypress bark roofing (hinoki-gawa-buki) and exposed woodwork retain the reddish hue of aged hinoki, and the bracket complexes under the eaves display the refined carpentry techniques of the early Kamakura period. Unlike many shrines rebuilt repeatedly, Kandani’s hall preserves original structural members from 1219, making it an invaluable reference for scholars of medieval architecture. The shrine grounds are modest, surrounded by old camphor trees and stone lanterns that mark the approach. A separate worship hall and small auxiliary buildings were added in later centuries, but the National Treasure honden remains the undisputed focal point.

• Reitaisai (Annual Grand Festival, October) — Held on the second Sunday of October, this festival celebrates the autumn harvest with offerings of newly harvested rice, sake, and vegetables. Priests perform kagura dances within the National Treasure hall, a rare opportunity to witness rituals conducted inside the historic structure.
• Hatsumode (New Year Visit) — Local farmers and residents visit to pray for agricultural success in the coming year, a tradition that has continued unbroken for centuries.

Late autumn, particularly during the October Reitaisai festival, offers the most culturally immersive experience. The surrounding countryside is golden with harvested rice fields, and the festival’s kagura performances are conducted with the doors of the National Treasure hall open, allowing visitors a rare glimpse inside. Early morning visits in any season provide quiet contemplation of the architecture without crowds, as the shrine receives far fewer tourists than Kagawa’s more famous sites like Kotohira-gū.