Asakura Shrine Main Hall

Asakura Shrine Main Hall: A Brilliantly Painted Treasure in Kochi

Nestled at the southeastern foot of the sacred Mt. Akagi (Akagiyama) in the Asakura district of Kochi City, Asakura Shrine (朝倉神社) is one of Shikoku's most historically significant Shinto sanctuaries. Designated as an Important Cultural Property of Japan, its Main Hall (Honden) stands as a vivid testament to the artistry and craftsmanship of early Edo-period shrine architecture, retaining the flamboyant spirit of the preceding Momoyama era. For travelers seeking authentic cultural encounters beyond Japan's well-trodden tourist paths, Asakura Shrine offers a rare opportunity to admire a brilliantly decorated shrine building steeped in ancient myth and local legend.

A Storied History Reaching Back to Antiquity

The origins of Asakura Shrine are lost in the mists of prehistory. It is mentioned in the ancient Tosa no Kuni Fudoki (Records of Tosa Province), one of Japan's earliest regional gazetteers, identifying the deity Amatsu-haha-no-kami as the shrine's principal kami. This deity, described as a child of Ame-no-Iwatowake-no-kami, is venerated as the founding and pioneering deity of the Asakura region.

The shrine is also recorded in the Engishiki (927 CE), the authoritative compilation of laws and regulations from the Heian period, confirming its status as an officially recognized shrine (Shikinaisha) of considerable antiquity and importance. It has long been regarded as the Second Shrine (Ninomiya) of Tosa Province, second only to the great Tosa Shrine (Tosa Jinja). According to one tradition, the principal deity of Asakura Shrine is considered the consort of the deity enshrined at Tosa Shrine, and in ancient times the two shrines alternately performed official prayers on behalf of the province.

Perhaps the most captivating aspect of Asakura Shrine's history is its connection to Empress Saimei (594–661 CE). According to the Nihon Shoki (Chronicles of Japan), when the empress journeyed westward in 661 to support the rescue of the Korean kingdom of Baekje, she established a temporary palace known as the Asakura-no-Tachibana-no-Hironiwa-no-Miya. Trees from a local shrine called "Asakura-sha" were cut to build this palace, which angered the thunder deity, who destroyed the structure. Ghostly fires appeared within the palace, and many attendants fell ill. When the empress passed away, a demon appeared on the mountain, wearing a great straw hat, watching the funeral proceedings from above.

While mainstream scholarship places this legend in Asakura, Fukuoka Prefecture, a strong local tradition in Kochi identifies Asakura Shrine as the very "Asakura-sha" of the chronicle. The mountain behind the shrine, known as Akagiyama (Red Demon Mountain), is said to be the mountain where the demon appeared. This association gives the shrine its popular nickname, "Ki-no-Maru-sama" (Lord of the Log Palace), referring to the rough-hewn log structure of the empress's temporary residence.

Why Was the Main Hall Designated an Important Cultural Property?

The current Main Hall was rebuilt in 1657 (Meireki 3) under the patronage of Yamauchi Tadayoshi, the second lord of the Tosa Domain. Construction began on the 16th day of the second month and was completed by the eighth month of the same year.

The building earned its designation as a nationally Important Cultural Property — originally designated as a National Treasure in 1949 and reclassified in 1950 under the new Cultural Properties Protection Law — for several compelling reasons. Its architectural style is notably unusual for a Shinto main hall: rather than the typical nagare-zukuri (flowing) style common to shrine architecture, it employs the rarer kirizuma-zukuri (gabled) roof form, with a single-bay worship porch (kohai) adorned with an elegant cusped gable (noki karahafu). The ridge carries three oki-chigi (ornamental crossed beams) and five katsuo-gi (cylindrical ridge logs), lending the structure a dignified presence.

Most strikingly, the building preserves the lavish decorative sensibility of the Momoyama period (late 16th century), despite having been constructed well into the Edo period. The walls and panel screens are embellished with paintings of celestial beings and mythological scenes, while the entire structure features elaborate polychrome painting (gokusaishiki), lacquer work, and gold-plated metalwork throughout. This stylistic time lag is attributed to Tosa's geographic remoteness from Japan's cultural centers in Kyoto and Edo, which caused architectural trends to arrive later than in the capital. This characteristic makes the Main Hall a valuable document of how Momoyama aesthetics were interpreted and preserved in provincial settings.

Highlights and What to See

The Main Hall of Asakura Shrine rewards careful observation with its wealth of decorative detail. The exterior walls and side panel screens (wakishoji) are adorned with vivid paintings depicting figures that appear to be Taoist immortals or heavenly beings. Despite repainting over the centuries, the overall decorative scheme retains its essential character. The building's color palette features bold yellow, vermilion, green, and touches of gold that create a striking visual impact — so brilliant, in fact, that local legend says horses had to be blindfolded when passing the shrine to prevent them from being startled by the dazzling colors.

Inside, the hall is divided into an inner sanctuary (naijin) and an outer sanctuary (gejin), with painted ceilings depicting heavenly musicians and dancers (tennin bugaku). All columns are round, and the craftsmanship throughout is precise and refined without being excessive.

In front of the main hall stands the Haiden (Worship Hall), rebuilt in 1796 by the tenth lord, Yamauchi Toyonori. Before the worship hall sits the "Chokushi-ishi" (Imperial Envoy's Stone), a stone traditionally identified as the seat used by imperial envoys in ancient times.

The shrine also possesses a pair of Odoyaki ceramic guardian lion-dogs (komainu), crafted from locally produced Odo-yaki pottery — a rare type found at only one other shrine in the prefecture. These have been designated as a Kochi City Cultural Property.

The Sacred Mountain: Mt. Akagi (Akagiyama)

Rising directly behind the shrine to a height of approximately 100 meters, Mt. Akagi (赤鬼山, literally "Red Demon Mountain") is the shrine's sacred mountain (shintaizan) and spiritual heart. Its beautifully symmetrical conical form has been compared to Mt. Miwa in Nara Prefecture, one of Japan's most famous kannabi (mountains where deities dwell) and the sacred peak of Omiwa Shrine.

While no ritual artifacts have been found on Mt. Akagi itself, pottery from the middle Yayoi period (roughly 2,000 years ago) has been discovered on its slopes, and the Asakura Kofun (burial mound) from the late Kofun period sits at the mountain's southern base. Together, these finds suggest that a powerful local clan flourished in this area centered around the mountain. Mt. Akagi is designated as a Kochi Prefectural Historic Site, and visitors may climb to the summit via a trail whose entrance is located about 500 meters west of the shrine grounds.

Asakura Kofun: A Window into Ancient Tosa

Near the base of Mt. Akagi, visitors can explore the Asakura Kofun, one of the "Three Great Kofun of Tosa." Discovered during land clearing in the early Meiji era, this tumulus originally yielded Sue ware pottery, iron arrowheads, and horse trappings. Although the earthen mound has been removed, the impressive横穴式石室 (yokoana-shiki sekishitsu, corridor-style stone chamber) is exposed and well preserved. The main chamber (genshitsu) measures approximately 5.4 meters in length and 2.6 meters in width, constructed from massive boulders beautifully stacked. The construction style dates the tomb to approximately the mid-7th century. This site is designated as a Kochi Prefectural Historic Site.

Annual Festival: The Nanmonde Dance

Every year on November 10th, Asakura Shrine comes alive with its autumn grand festival (Aki Reitaisai). The highlight of the celebration is the "Nanmonde Odori," in which men and women of all ages dance while chanting "Nanmonde" (a phonetic rendering of "Namu Amida Butsu," the Buddhist invocation of Amida Buddha), carrying fans, bells, and drums. The festival also features traditional stick fighting (bo-furi) and ritual sumo wrestling (kami-zumo). These performances have been designated as an Intangible Folk Cultural Property of Kochi City, reflecting the layered syncretism of Shinto and Buddhist traditions in rural Japan.

Surrounding Area and Nearby Attractions

Asakura Shrine is located in the western part of Kochi City, an area rich in history and natural beauty. Nearby points of interest include:

• Kochi Castle — One of only twelve original castles remaining in Japan, located about 5 km east. Its tower keep and the Kaitokukan residence are both designated Important Cultural Properties.
• Tosa Shrine (Tosa Jinja) — The Ichinomiya (First Shrine) of Tosa Province, located about 7 km east, with its own Important Cultural Property buildings.
• Kochi University Asakura Campus — Adjacent to the shrine area, the campus adds a youthful energy to the neighborhood.
• Asakura Castle Ruins (Asakura-jo Ato) — South of the shrine, the remains of a mountain castle associated with the Chosokabe clan.
• The Sunday Market (Nichiyoichi) — One of Japan's largest street markets, held every Sunday along Otesuji in central Kochi, approximately 5 km east.