During the age of Japanese Civil War, the faithful samurai Yajiro Torajima is surrounded by an enemy army. At the last moment, the bountiful Rushuna appears and saves him with a smile.. and a high-caliber revolver. She is traveling across Japan in search of a way to bring an end to war. Yajiro and Rushuna challenge countless opponents with his sword and her talent for reloading on the bounce.

Source: AniDB