About the Blade
Kanabou Masatsugu? (金房政次?)
Forge Date
Muromachi period
Current Sword Length
79.2cm (blade) 321.5cm (whole length)
Current Blade Hamon (Historical)
Current Location
Fukuoka City Museum
Public Viewing
Yes (permanent exhibition)
Blade Appearance
  • Originally an Imperial Treasure. Emperor Oogimachi presented it to Ashikaga Yoshiaki, then it went into the hand of Oda Nobunaga and Toyotomi Hideyoshi.
    • It was said that he was named Nihongou during the time he belonged to Hideyoshi.
    • There is also a theory that he was actually a tachi which is so good for thrusting that he ended up getting put as a spearhead.
  • The spear was bestowed upon Fukushima Masanori due to his achievement during the attack to Nirayama Castle (Siege of Odawara).
  • He came into the possession of Kuroda clan as Fukushima had a drinking game against Mori Tahei, a chief vassal of the family, with Nihongou as the stake.
  • After that, he went to different hands until eventually presented to the Kuroda clan. Currently displayed in Fukuoka City Museum.
  • Along with his fellow Three Great Spears member Otegine, he formed a saying: "there is the Kuroda with Nihongou at the west, and there is the Matsudaira with Otegine at the east".
  • Nihongou is often depicted imbibing sake with fellow drunkard Jiroutachi in works of fanart involving the two.
  • Some fanworks depict Nihongou with Heshikiri Hasebe and Hakata Toushirou. This is due to Heshikiri being given to either Yoshitaka Kuroda, or his son, Nagamasa Kuroda. Nihongou was won by Fukushima Kuroda, after winning a drinking bet. These three together are known as Kurodagumi.

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