Masterless samurai Masanosuke Akitsu’s sword skills are considerable, but his timid nature prevents him from holding down a job. With desperation closing in, Akitsu accepts an offer to work as a bodyguard for Yaichi, the charismatic leader of a mysterious gang – the Five Leaves. Though the meek swordsman finds the gang’s actions disturbing, Akitsu grows more fascinated by the outlaws every day.