Spring breezes that stir up the memory of ancient lost battles. Summer fields that burn under the fire of perfidy. The thrill of autumn nights in which the echoes of demon cries are echoed. Winter snow tinted with red by the blood of honor. The seasons are chained in an eternal cycle of birth, life and death, such as the natural reflection of the warrior's pilgrimage undertaken by Miyamoto Usagi, a masterless samurai that surveys the countryside of feudal Japan, fighting injustice and cultivating his spiritual and martial talents.