Tsutsukowake Shrine — 都々古別神社

Tsutsukowake Shrine stands at the edge of what was once Japan’s frontier — the northern border of imperial control in the early Heian period. Founded in 807 CE during the campaigns to subdue the Emishi peoples of northeastern Japan, this shrine was built not as a celebration of conquest, but as a deliberate act of reconciliation. The name itself is unusual: tsutsukowake means “to separate and distinguish,” and the shrine’s founding deity was charged with creating peace between the imperial forces and the indigenous populations they had been fighting for generations. It became the ichinomiya (first-ranked shrine) of the vast Mutsu Province, a designation that reflected both spiritual authority and political necessity.

The shrine was established in 807 CE by order of Emperor Heizei, just two years after the final major military campaign against the Emishi concluded. The general Sakanoue no Tamuramaro, who had led those campaigns, is traditionally credited with selecting the site in what is now Tanagura, Fukushima Prefecture. Unlike most shrines built during military expansions, Tsutsukowake was explicitly founded to honor a kami of reconciliation rather than martial victory. There are actually two Tsutsukowake shrines — the other in nearby Iwaki — and scholarly debate continues over which is the original ichinomiya. The Tanagura shrine claims primacy based on its proximity to the ancient provincial capital. During the medieval period, the shrine received patronage from the Date and Satake clans, and its current main hall was reconstructed in the early Edo period.

Ajisukitakahikone no Mikoto is the primary deity enshrined here, a god of thunder, agriculture, and mediation who appears in both the Kojiki and Nihon Shoki. He is the son of Ōkuninushi, the great deity who ceded control of the earthly realm to the imperial line. This genealogy made Ajisukitakahikone particularly appropriate for a frontier shrine: he represented continuity between the old order and the new. The shrine also venerates Kotoshironushi no Mikoto, another son of Ōkuninushi associated with oracles and fishing, and Takemikazuchi no Mikoto, the warrior deity who negotiated the transfer of power from Ōkuninushi to Amaterasu’s descendants. Together, these three kami embody the shrine’s founding purpose — peaceful transition rather than violent displacement.

The shrine’s foundation legend tells of Sakanoue no Tamuramaro arriving at this site after his final campaign and experiencing a vision of Ajisukitakahikone descending from the mountains in a flash of lightning. The deity spoke to him, saying that the land had suffered enough bloodshed and that a shrine should be built where prayers could rise for both the fallen imperial soldiers and the Emishi warriors they had fought. Tamuramaro ordered the construction immediately. A second legend explains the shrine’s association with thunder: during a severe drought in the 12th century, the shrine priest climbed to the inner mountains and prayed for three days. On the third night, Ajisukitakahikone appeared riding a white deer, and where the deer’s hooves struck the ground, springs burst forth. Thunderstorms followed, ending the drought. The spring, called Kami no Mizu (Divine Water), still flows in the shrine precincts.

The main hall (honden) follows the nagare-zukuri style with a sweeping cypress bark roof, rebuilt in 1640 and designated an Important Cultural Property. The approach passes through three torii gates, the first of which is an ancient stone construction that predates the current buildings. The shrine sits on forested land that was once much larger; historical records indicate the original precinct extended several kilometers into the mountains. A distinctive feature is the Kaguraden (sacred dance hall), which houses masks and costumes used in the Tsutsukowake Kagura, a form of ritual dance unique to this shrine that depicts the pacification of the frontier. Behind the main hall, a path leads to the Okumiya (inner shrine) located partway up Mount Yamizo, marking the spot where Tamuramaro is said to have first seen his vision.

• Reitaisai (Annual Grand Festival) — September 12–13 — The main festival features the performance of Tsutsukowake Kagura, twelve ritual dances that have been performed here for over 600 years, designated as an Intangible Folk Cultural Property of Fukushima Prefecture.
• Hatsumode (New Year) — Local residents visit to pray for agricultural prosperity and family harmony, reflecting the shrine’s dual association with thunder (which brings rain) and mediation (which maintains peace).
• Gion Festival (July 14) — A summer purification ritual involving processions through Tanagura town, originally established to prevent epidemics in the medieval period.
• Thunderstorm Prayer Ritual (June) — An annual prayer for proper rainfall performed by shrine priests at the Kami no Mizu spring before the rice-planting season.

September, for the Reitaisai and its accompanying kagura performances. The dances are performed outdoors if weather permits, and watching them in the context of the forested shrine grounds — with the knowledge that they commemorate the end of centuries of warfare — adds considerable weight to the experience. Early autumn also brings comfortable temperatures to this mountainous region. Late June offers a different experience: the pre-planting thunderstorm rituals are less formal but more intimate, and you can witness the spring ritual at Kami no Mizu when the forest is at its greenest.