* Image is for illustrative purposes only.Ishikirimaru
石切丸
Also known as: The Divine Sword of Ishikiri Shrine; the Blade That Cuts Illness
Description
Ishikiri Kenkenshinrin and Ishikirimaru — the Sacred Blade that Severs Tumors and Disease
Ishikiri Kenkenshinrin, enshrined in Higashi-Osaka, Osaka Prefecture, is an ancient shrine with profound devotion throughout the Kansai region as the "god of tumors and illnesses," and the sacred tachi "Ishikirimaru" preserved as its divine treasure is one of the most distinctive sacred swords in Japanese sword culture. The place-name "Ishikiri" carries the literal meaning "cutting stone," and its two principal deities, Nigihayahi no Mikoto and Kamimamade no Mikoto, are ancient gods in Japanese mythology said to have descended to Yamato before the main celestial descent—ancestors of the heavenly deities. As the divine sword of this shrine, Ishikirimaru is venerated for its spiritual function of "severing illness and tumors" beneath the commanding name "that which cuts even stone," and to this day worshippers seeking healing from illness never cease to visit the shrine as the "god of tumors and illnesses."
The Making and Style of Ishikirimaru — A Masterwork of the Ancient-Sword Period
Ishikirimaru is a tachi of the Heian period (12th century) attributed to the kotouiki (ancient-sword) period, and its maker is traditionally said to be Arinari. Arinari is a swordsmith said to have been either a student or son of Sanjo Munetika, and his style shows affinity with Yamashiro blade work of an earlier age, suggesting connection to the Sanjo lineage. Ishikirimaru displays a tachi form of commanding length at approximately 76 cm, with a deep Kyoto curve and elegant proportions; the steel is refined to extraordinary precision, and the blade pattern shows a dignified straight-edge temper. It was designated an Important Cultural Property in 1939 (Showa 14), and is carefully preserved as a divine treasure of Ishikiri Kenkenshinrin.
Hyakudo-mairi and the Faith in Ishikirimaru — Religious Practice Continuing to Modern Times
Ishikiri Kenkenshinrin has long gathered popular devotion as the "god of tumors and boils," and visitors performing the "hyakudo-mairi" can still be seen in the sanctuary today. The hyakudo-mairi is an ancient religious practice in which one makes one hundred round-trip circuits between the main hall and the hundred-circuit stone, and families often perform it on behalf of those gravely ill. The hyakudo-mairi at Ishikiri Shrine is particularly renowned throughout the Kansai region as a practice seeking healing from internal illnesses—tumors, boils, and cancer (from the modern era onward)—and even in the present age of modern medicine, many worshippers continue to hold faith in Ishikirimaru's spiritual power. This faith in Ishikiri Shrine as the "god of tumors" arose from the union of the image of Ishikirimaru's "blade that cuts even stone" with the belief-function of "severing illness," and is noted in folk-belief scholarship as a typical example where the Japanese sword's function of "cutting" has been elevated to a religious and magical function of "severing disease."
Ishikirimaru and Touken Ranbu — The Revival of the Sacred Blade in Modern Culture
Ishikirimaru appeared as a personified-sword character in the browser and smartphone game "Touken Ranbu -ONLINE-" which began service in 2015, and suddenly became renowned among younger generations. In the game, Ishikirimaru's character is given the personality trait of being "gentle, nurturing, and possessed of healing power," and the spiritual function of "healing illness" as a sacred sword is skillfully reflected in the game character's attributes. Following its appearance in Touken Ranbu, visitors to Ishikiri Kenkenshinrin increased markedly, and the shrine itself engaged in official collaboration with Touken Ranbu, drawing attention as a "point of contact between young sword-enthusiasts and traditional shrine worship." This phenomenon represents a rare cultural case where a single sacred blade transforms from an "ancient divine sword" into "a modern pop-culture icon" while maintaining its connection to shrine worship—vividly illustrating the intersection of Japanese tradition and modernity.
Ancient Gods of Yamato and Legends Before the Descent of Heaven
Nigihayahi no Mikoto, the principal deity of Ishikiri Kenkenshinrin, occupies a unique mythological position in the records of the Kojiki and Nihon Shoki as a god said to have descended to the land of Yamato before the Heavenly Grandchild (the grandson of Amaterasu, Ninigi no Mikoto)—hence as an ancient god who ruled Yamato in advance of Ninigi's descent. Nigihayahi no Mikoto descended from heaven aboard the "Ama no Iwafune" (heavenly rock boat)—a flying object (noteworthy as the earliest mention of a flying object in ancient Japanese records)—gave his younger sister in marriage to Nagsunehiko of the Yamato forces, and then, when Emperor Jinmu's eastern campaign arrived, attempted to persuade Nagsunehiko; upon failure, he himself executed Nagsunehiko and submitted to Emperor Jinmu, carrying a complex mythological history. This mythological position of Nigihayahi no Mikoto as the "celestial god who ruled Yamato before the Heavenly Descent" forms the deep background to the religious authority of Ishikiri Shrine and Ishikirimaru, and Ishikirimaru, as the divine sword of this ancient god, carries the religious significance of being "the material embodiment of the most ancient divine authority in Japanese mythology."
Legends & Stories
The mythology surrounding Ishikirimaru is inseparable from the remarkable deity enshrined at Ishikiri — Nigihayahi no Mikoto, one of the most theologically intriguing figures in the entire Kojiki/Nihon Shoki corpus. According to tradition, Nigihayahi descended to the Yamato plain in a 'heavenly rock boat' (ama-no-iwafune) before the main line of divine descent arrived — making him, in effect, an earlier generation of heavenly ruler than the imperial lineage. When the ancestral Emperor Jimmu advanced on Yamato in his legendary conquest, Nigihayahi sided with the native hero Nagasunehiko until persuaded otherwise, then finally submitted to Jimmu's line, integrating this parallel divine descent into the imperial framework. This 'earlier heaven-descended god' is the deity to whom Ishikirimaru belongs as a sacred sword — a talisman from before the beginning of the imperial age, from a time even older than the oldest recorded royal mythology. The sword's name adds another layer: a blade that cuts stone can cut anything, including disease, bad fortune, spiritual pollution. The hyakudo-mairi pilgrims who walk their hundred circuits today in the shadow of the Osaka hills are participants in a religious practice older than Japanese history as we know it — carrying prayers to a god who remembers a Japan before Japan, through a sword whose name promises the impossible: to cut through the hardest things that stand between a person and their healing.