Throughout the ages, the Mutsu clan has always fought for one reason: it's fun. They live for the challenge of dueling the greatest fighters of their era. But Izumi Mutsu lives during the time of the Meiji Revolution, when the streets of Kyoto ran red with blood. The murder of his closest friend by the loyalists means it's time for Izumi to stop having fun. The legendary Mutsu martial arts go head to head with history as Izumi charges toward revenge against the Shinsen Gumi!