Masakuni Doudanuki is a character from the series Touken Ranbu. He is an anthropomorphized version of a historic Japanese sword, brought to life to protect history from evil forces. Known for his robust and practical nature, Masakuni values function over appearance, often seen as a no-nonsense individual. Despite his rough exterior, he holds a deep sense of loyalty and duty towards his comrades. His role in the series involves leading battles against historical revisionists, ensuring the preservation of the correct timeline.