Other Famous SwordsKatanaImportant Art Object

歌仙兼定

Kasen Kanesada

Also known as: Poetry Immortal

Smith

Kanesada (2nd generation, 'Nosada')

Era

Late Muromachi period (late 15th – early 16th century)

Type

Katana

Designation

Important Art Object

Location

Eisei Bunko Museum (on deposit at Kumamoto University)

Description

A celebrated blade wielded by Hosokawa Tadaoki (Sansai), forged by the second-generation Kanesada ('Nosada') of Seki in Mino. It earned the name 'Kasen' (Poetry Immortal) because Tadaoki is said to have used it to execute 36 of his retainers — a number evoking the Thirty-Six Poetry Immortals. Despite this grim origin, Nosada's craftsmanship is highly regarded for combining supreme sharpness with aesthetic beauty. Passed down as a Hosokawa family treasure in Kumamoto, it is now held by the Eisei Bunko Museum. In Touken Ranbu, it is portrayed as a cultured and elegant sword, making it one of the game's popular characters.

Legends & Stories

Hosokawa Tadaoki was one of the most cultured daimyō of the Sengoku era — a master disciple of Sen no Rikyū and one of the 'Seven Sages of Rikyū' — yet also a man of fierce temperament. While his passionate devotion to his wife Hosokawa Gracia (daughter of Akechi Mitsuhide) is well known, his severity toward retainers was equally notorious. The name 'Kasen' arose from his execution of 36 retainers, but this can also be read as the convergence of Tadaoki's aestheticism and martial ruthlessness in a single blade. This sword embodies the complex duality of Sengoku warlords — refinement and violence in one. The bloodshed lurking behind the elegant name 'Poetry Immortal' is precisely what makes this blade so compelling.