In the late Edo period, with external threats and internal troubles, the rivers and mountains were in turmoil, and the people lived in hardship, constantly facing threats to their lives. Young Hiruma Kenshin, moved by his kind and pure heart, catches the attention of the master swordsman Hiko Seijuro, who takes him under his wing to learn the art of swordsmanship, renaming him Kenshin. During the national crisis, the young Kenshin, with dreams of changing the era, descends the mountain and joins the Kiheitai, later becoming the executioner under Katsura Kogoro, contributing his modest strength to the changes of the time. At just 15 years old, Kenshin assassinates several government officials, instilling fear in his opponents, until one day, a low-ranking samurai leaves an unhealable scar on his face. Yukishiro Tomoe, who comes from Kyoto searching for her beloved, encounters Kenshin, the frail man before her who has taken her lover away from her life. Tomoe enters Kenshin's life, subsequently experiencing the bloody political struggles and the serene elegance of rural life. Perhaps she is the sheath for Kenshin's wildly dancing blade, but against the backdrop of the grand era, their small happiness is destined to shatter at the slightest touch...