Please note: This article is about the slim aiguchi. For other uses of the term, please see Kaiken (disambiguation).
Hida Masiko's Kaiken

A Kaiken

Kaiken was a long, slim aiguchi. [1]

Lady's weapon Edit

Non-samurai-ko noblewomen often kept a kaiken to defend their honor and body against assailants. When besieged by a superior army, many loyal wives and daughters used it to perform jigai, a less painful type of seppuku done by slitting the throat. [1]


  1. 1.0 1.1 Bearers of Jade, p. 55

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