It is the only existing long sword by Awataguchi Yoshimitsu, one of the "three master craftsmen of the world". There is a theory that this name was given because it is the only sword of Yoshimitsu who was a master of daggers, but since there is a record of training a few swords, he trained it as the best masterpiece in his life. It is called "Ichiko Hitofuri". There are various theories about the source, such as the Echizen Asakura family, Sakai, and Mori family, but Hideyoshi requested it when he visited the residence of Terumoto Mori under the castle of Osaka in 1818, and "Ichiko Hitofuri" was presented. Hideyoshi owned a famous sword for the first time in 175, but he liked this sword very much and said that he put it in the Ichino box that stores the finest heirloom along with Yoshimitsu's bone-eating Toshiro. "Ichiko Hitofuri" will be self-immolated in the summer of Osaka, but it will be re-bladed by the order of Ieyasu Tokugawa, and will be owned by the Tokugawa family thereafter. At the end of the Tokugawa shogunate, it was presented to Emperor Komei by the Owari-Tokugawa family and is stored in the Imperial Household Agency as a treasure.
- Size：12.9㎝