From: Easy Going Scans

General Tokugawa was given 13 sacred swords to bring peace to Japan. However just when Tokugawa started a new dynasty, he was assassinated by his 12 commanders, aka masters of the 12 sacred swords. The last one, Crimson Firebird, was given to Dohran, Tokugawa's naive son . Many years have passed and now, under the cover of a travelling performer, Dohran is seeking revenge and also to bring back the smile in the faces of people.