Shanaou Yoshitsune presents an alternate narrative of Minamoto no Yoshitsune, a famous historical personality of the Heian Era. The story introduces his followers, including the celebrated Benkei. According to this version, Yoshitsune was a frail and ailing child who encounters his physical twin in Hyouta, a homeless orphan. Hyouta's superior physical strength leads him to pose as Yoshitsune and assume his identity. The manga is a work of fiction, but it incorporates several factual details as it follows Hyouta's journey to revive the honor of the Genji (Minamoto) Clan.