Miyamoto Musashi appears in the first arc of Shura no Toki: Age of Chaos as a legendary swordsman who represents the pinnacle of traditional Japanese swordsmanship during the early Edo period. He is a historically based figure integrated into the series’ premise, in which the Mutsu clan, practitioners of an unarmed martial art called Mutsu Enmei Ryu, challenge and cross paths with the most formidable fighters of their era. In the story, Musashi serves as a major opponent for the Mutsu clan member active in that time period, showcasing the clash between his refined sword techniques and the clan’s raw, weaponless combat style.

Musashi is portrayed as a confident and intensely proud warrior, driven by an unwavering commitment to mastering the sword and proving his superiority. His motivations center on defending his reputation as an undefeated duelist and testing his abilities against any worthy challenger. He is calm and calculating in battle, yet capable of ruthless aggression when pushed. His key relationship is with the Mutsu fighter he faces, defined by mutual respect and a fierce rivalry grounded in the pursuit of martial truth. Although his role is limited to a single story arc, he leaves a strong impression as a formidable adversary whose presence highlights the Mutsu clan’s philosophy and skill. Musashi does not undergo significant character development within the series, as his appearance is that of a historical figure whose legend is already established. His notable abilities include exceptional swordsmanship, strategic adaptability, and the use of the two-sword style for which the historical Musashi is renowned. In the context of Shura no Toki, he embodies the height of conventional weapon-based combat, ultimately serving as a benchmark against which the unconventional Mutsu fighting art is measured.