After the fall of the Heike clan at the Battle of Dan-no-ura, the Minamoto clan was haunted by the vengeful spirits of the defeated Heike. During such a troubled time, a venerable monk appeared and chanted Buddhist prayers to calm the spirits.The Akasawa Yoroi Kenbai is based upon this story.
The Akasawa Kodomo Yoroi Kenbai is performed by members of the Karajishikai, an activity club integrating local performing arts introduced for the first time in elementary schools across the Prefecture in Heisei 25 (2013), led by the Ofunato Kita Elementary School Folk Performing Arts Club, and its alumni, junior and senior high school students.