Nansen Ichimonji is a character from the popular online game Touken Ranbu Online, where famous historical swords are personified as attractive young men. Nansen Ichimonji is based on a legendary Japanese sword, known for its association with the Kamakura period and its exquisite craftsmanship. In the game, Nansen Ichimonji is depicted as a calm and composed swordsman, dedicated to his mission of protecting history from the forces attempting to alter it. He plays a significant role as one of the collectible sword warriors.