Forty-Seven Rōnin Raid Day

What Is Forty-Seven Rōnin Raid Day?

December 14th is "Forty-Seven Rōnin Raid Day" (Shijūshichishi Uchiiri no Hi) in Japan. Late on the 14th day of the 12th month of Genroku 15, and into the small hours of the next morning -- January 30, 1703, by the Western calendar -- forty-seven former retainers of the Akō domain, led by Ōishi Kuranosuke, stormed the Edo mansion of the court official Kira Kōzukenosuke Yoshinaka in Honjo Matsuzakachō, today's Ryōgoku in Sumida Ward, Tokyo. The Genroku Akō Incident has been retold as "Chūshingura" in puppet theater, kabuki, film and television for more than three centuries.

From the Corridor of Pines to the Raid: About 21 Months

The story begins the year before.

• 3rd month of Genroku 14 (1701): Asano Naganori, lord of Akō, drew his sword on Kira inside Edo Castle's Corridor of Pines. Asano was ordered to commit seppuku the same day, his domain was dissolved, and his retainers all became rōnin -- masterless samurai.
• 14th day, 12th month of Genroku 15 (1702): Forty-seven of them raided Kira's mansion, a compound of roughly 8,400 square meters (about 134 m east to west by 63 m north to south).
• 4th day, 2nd month of Genroku 16 (1703): The shogunate ordered 46 of them to commit seppuku. Only Terasaka Kichiemon, a foot soldier who left the group after the raid, escaped punishment.

The Shogunate Refused to Call It a Vendetta

The theater treats the raid as a noble act of revenge, but officials saw it differently. Asano had attacked Kira, not the other way around, and Kira had never killed Asano. By that reasoning Kira was not the retainers' lawful enemy, and their action counted not as a permitted vendetta but as tōtō -- forming an illegal faction. That the shogunate nonetheless granted them seppuku, a samurai's honorable death, rather than execution, hints at how torn it was.

How the Story Became a Year-End Fixture

• Kanadehon Chūshingura: First staged as a puppet play at the Takemoto-za theater in Osaka in the 8th month of 1748, this eleven-act work later became one of kabuki's most popular pieces.
• Sengakuji Temple (Takanawa, Minato Ward, Tokyo): Asano and the forty-seven are buried here. The Akō Gishi-sai memorial is held April 1-7 and again around December 14.
• Akō Gishi-sai (Akō, Hyōgo Prefecture): On December 14 a costumed procession of the "loyal retainers" parades through the old castle town.

Tips for Marking This Day

• Walk through Honjo Matsuzakachō Park in Ryōgoku, the site of Kira's mansion, and trace the compound's original size on a map
• Visit the memorial service at Sengakuji Temple and pay respects at the graves
• Watch one Chūshingura film or drama and look for where it departs from the historical record
• Consider how Ōishi spent nearly two years on preparation -- a useful lens on your own year-end planning

A Year-End Story Three Centuries Old

The Akō Incident still holds people's attention not only as a tale of loyalty, but because it poses questions that have not gone away: where duty to a group ends, and how law and human feeling pull against each other. December 14 is a good day to sit with those questions for a moment.