Mugen is a buck wild warrior- violent, thoughtless and womanizing. Jin is a vagrant ronin- mysterious, traditional, well-mannered and very strong as well. These two fiercely independent warriors can't be any more different from one another, yet their paths cross when Fuu, a ditzy waitress, saves them from being executed when they are arrested after a violent swordfight. Fuu convinces the two men to help her find a mysterious samurai "who smells of sunflowers." And their journey begins.