Rurouni Kenshin: Requiem for the Ishin Patriots (1997)

The war against the Tokugawa Shogunate ended years ago. But there are some who are not happy with the outcome. Takimi Shigure watched his friends and family get cut down in the name of freedom and prosperity. Now he and a band of desperate rebels have sworn to settle one final score. Only one man stands in their way: Kenshin Himura. But when Shigure discovers Kenshin's true identity as the Hitokiri Battosai, his fight becomes a personal vendetta.